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Handbook of Radiotherapy Physics: Theory and Practice [Kõva köide]

Edited by , Edited by , Edited by (Clatterbridge Cancer Centre, UK)
  • Formaat: Hardback, 1450 pages, kõrgus x laius: 254x178 mm, kaal: 2200 g, 20 pg color insert follows pg 590; 93 Tables, black and white; 539 Illustrations, black and white
  • Ilmumisaeg: 12-Jun-2007
  • Kirjastus: Taylor & Francis Ltd
  • ISBN-10: 0750308605
  • ISBN-13: 9780750308601
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  • Formaat: Hardback, 1450 pages, kõrgus x laius: 254x178 mm, kaal: 2200 g, 20 pg color insert follows pg 590; 93 Tables, black and white; 539 Illustrations, black and white
  • Ilmumisaeg: 12-Jun-2007
  • Kirjastus: Taylor & Francis Ltd
  • ISBN-10: 0750308605
  • ISBN-13: 9780750308601
Teised raamatud teemal:
From background physics and biological models to the latest imaging and treatment modalities, the Handbook of Radiotherapy Physics: Theory and Practice covers all theoretical and practical aspects of radiotherapy physics.

In this comprehensive reference, each part focuses on a major area of radiotherapy, beginning with an introduction by the editors and then subdividing into self-contained chapters. The first three parts present the fundamentals of the underlying physics, radiobiology, and technology involved. The ensuing sections discuss the support requirements of external beam radiotherapy, such as dose measurements, properties of clinical beams, patient dose computation, treatment planning, and quality assurance, followed by a part that explores exciting new advances that include developments in photon and particle therapy. Subsequent sections examine brachytherapy using sealed and unsealed sources and provide the framework of radiation protection, including an appendix that describes the detailed application of UK legislation. The final part contains handy tables of both physical constants and attenuation data.

To achieve safe and effective radiotherapy, there needs to be a close understanding among various disciplines. With contributions from renowned specialists, the Handbook of Radiotherapy Physics: Theory and Practice provides essential theoretical and practical knowledge for medical physicists, researchers, radiation oncologists, and radiation technologists.

Arvustused

" Due to the broad range of topics covered and the clear, concise explanations, this text would be ideal for anyone wishing to study or refresh their knowledge of any central area of radiotherapy physics. IPEM Part 1 trainees in the UK (and any other trainee following a similar training programme elsewhere) in particular should take note . Part 2 trainees will also benefit, especially in exploring the excellent source of referenced material. In comparison to other reference texts, the Handbook of Radiotherapy Physics is clear and also filled with many knowledgeable and useful observations and notes. It is an excellent reference text and sits nicely on the shelf alongside your old copy of Williams and Thwaites." SCOPE, December 2009



" comprehensive reference With contributions from renowned specialists, this book provides essential theoretical and practical knowledge to deliver safe and effective radiotherapy." Anticancer Research, 2009, Vol. 29



"The editors have managed with great success to assemble the information submitted by the contributing authors and put it in a format that is concise, easy to read, and rich in content  it can serve as an excellent reference manual and resource." Niko Papanikolaou, University of Texas Health Sciences Center, Medical Physics, September 2008, Vol. 35, No. 9

Part A: Fundamentals
Structure of Matter
5(14)
Jean Chavaudra
The Concept of the Atom
6(1)
The Atomic Structure
6(4)
Building Up the Models
6(1)
Schematic Description of the Atomic Structure
6(1)
The Nucleus
6(1)
The Peripheral Electrons/Electronic Shells
7(1)
The Global Atom
8(1)
Atomic Structure Interpretation according to the Wave-Mechanical Model
8(1)
Peripheral Electrons
9(1)
Electronic Status
9(1)
The Nucleus
9(1)
Nomenclature
10(1)
Binding Energies in Atoms and Molecules
10(3)
Energy and Matter
10(1)
Energy of Photons
10(1)
Energy of Particles with Mass
11(1)
Binding Energies in Atoms
11(1)
Mass Defect
12(1)
Electron Binding Energy and Energy Levels of the Atomic Shells
12(1)
Binding Energies in Molecules
13(1)
Perturbation of Binding Energies
13(4)
Excitation
13(1)
Ionisation
13(1)
Equilibrium Recovery: Fluorescence
14(1)
Equilibrium Recovery: Auger Effect
14(3)
Examples of Atoms and Molecules of Interest for Radiation Physics
17(2)
Radioactivity
19(16)
Jean Chavaudra
Stable Nucleus: Nuclear Energy Structure
20(2)
Nuclear Energy Levels
20(1)
Abundance of Stable Nuclei as a Function of the Number of Protons and Neutrons
21(1)
Influence of N/Z on Stability
22(1)
Nuclear Instability: Radioactivity
22(6)
Definition of Radioactivity
22(1)
Radioactive Transformations Associated with Strong Interactions
23(1)
α Radioactivity
23(1)
Spontaneous Fission
24(1)
Radioactive Transformations Associated with the Electrostatic Force
24(1)
Nuclear Isomerism (or γ Radioactivity)
24(1)
γ Emission and Internal Conversion
24(1)
Radioactive Transformations Associated with the Weak Interaction
25(1)
β- Radioactivity
25(1)
β+ Radioactivity
25(1)
General Aspects of β Decay
26(1)
Electron Capture
26(1)
Artificial Radioactivity
26(2)
Quantification of Radioactivity
28(3)
Activity: Quantity and Unit
28(1)
Radioactive Disintegration and Decay
28(1)
Law of Radioactive Decay
28(1)
Half-Life of a Radioactive Nuclide
29(1)
Specific Activity
29(1)
Equilibrium with Radioactive Daughter Products
29(2)
Production of Radioactive Sources through the Activation Process
31(4)
Standard Production of Artificial Radionuclides
31(2)
Unintentional Activation
33(2)
Interactions of Charged Particles with Matter
35(22)
Alan Nahum
Introduction
36(1)
Collision Losses
36(10)
Theory
36(2)
Collision Stopping Power
38(3)
Density Effect
41(1)
Electron Stopping-Power Data for Substances of Medical Interest
42(1)
Restricted Stopping Power
43(1)
Collision Stopping Power for Heavy Charged Particles
44(2)
Radiative Losses (Bremsstrahlung)
46(3)
Theory
46(1)
Radiation Stopping Power
47(1)
Radiation Yield
48(1)
Angular Distribution of Bremsstrahlung Photons
49(1)
Total Energy Losses
49(2)
Total Stopping Power
49(1)
Energy-Loss Straggling
50(1)
Continuous-Slowing-Down-Approximation (CSDA) Range
51(1)
Tabulated Stopping-Power Data
51(1)
Elastic Nuclear Scattering
51(3)
Application to an Electron Depth-Dose Curve
54(3)
Interactions of Photons with Matter
57(18)
David Dance
Gudrun Alm Carlsson
Introduction
58(1)
Photon Interaction Cross-Sections
58(2)
Interaction Cross-Sections
58(1)
Differential Scattering Cross-Sections
59(1)
Photon Interaction Processes
60(11)
Photoelectric Absorption
60(2)
Compton Interaction and Scattering Processes
62(1)
Incoherent Scattering
63(4)
Coherent Scattering
67(1)
Pair and Triplet Production
68(1)
Nuclear Photoeffect
69(1)
The Total Atomic Cross-Section
69(2)
Macroscopic Behaviour
71(3)
Beam Attenuation and Attenuation Coefficients
71(1)
Energy Transfer and Energy Absorption Coefficients
72(2)
Sources of Interaction Data
74(1)
The Monte Carlo Simulation of Radiation Transport
75(14)
Alex Bielajew
Introduction
75(1)
A Brief History of Monte Carlo
76(1)
Photon Interaction Processes
77(2)
Electron Interaction Processes
79(3)
Coupled Electron-Photon Transport
82(1)
Mathematical Methods of Monte Carlo
83(4)
Random Number Generation
84(1)
Elementary Sampling Theory
84(1)
Displacements and Rotations
85(1)
Estimating Means and Variances
85(1)
Geometry
85(2)
Conclusion
87(2)
Principles and Basic Concepts in Radiation Dosimetry
89(28)
Alan Nahum
Introduction
90(1)
The Stochastic Nature of Energy Deposition
91(1)
Definitions of Dosimetric Quantities
91(5)
Absorbed Dose
91(2)
Kerma (and Exposure)
93(1)
Particle Fluence
94(1)
Energy Fluence
95(1)
Planar Fluence
95(1)
Relations between Fluence and Dosimetric Quantities for Photons
96(3)
Relation between Fluence and Kerma
96(2)
Relation between Kerma and Absorbed Dose
98(1)
Charged Particle Equilibrium
99(4)
Relation between Fluence and Dose for Electrons
103(2)
Stopping Power and Cema
103(1)
Delta-Ray Equilibrium
104(1)
Cavity Theory
105(12)
General
105(1)
Cavity Theory for Large Photon Detectors
106(2)
Bragg-Gray Cavity Theory
108(3)
The Spencer-Attix Modification of Bragg-Gray Theory
111(2)
Departures from Perfect Bragg-Gray Behaviour in Small Cavities
113(1)
General Cavity Theory
113(1)
The Fano Theorem
114(3)
References 117(62)
Part B: Radiobiology
Radiobiology of Tumours
127(22)
Gordon Steel
Don Chapman
Alan Nahum
Concept of Clonogenic Cells
128(1)
Clonogenic Assays
129(1)
Cell-Survival Curves
130(1)
The Relationship between Cell Survival and Gross Tumour Response
130(3)
Tumour Growth Delay
130(1)
Local Tumour Control
131(1)
Selectivity Is the Name of the Game
132(1)
Why Cells Die When They Are Irradiated
133(1)
Cellular Recovery from Radiation Damage
133(1)
Variation of Cell Killing through the Cell Cycle
134(1)
The 5 Rs of Radiotherapy
135(1)
The Importance of Oxygen
135(1)
Hypoxia in Tumours
136(3)
Hypoxic Fraction
138(1)
Reoxygenation
138(1)
Tumour Control Probability
139(1)
Experimental Tumour Systems
140(1)
The Radiosensitivity of Human Tumour Cells
141(4)
The Initial Slope of the Cell-Survival Curve
141(1)
Cell-Survival Curves for Human Tumour Cells
142(1)
Departures from the LQ Model for Doses below 1 Gy
143(2)
The Effect of Different Radiation Qualities or LET
145(4)
Radiobiology of Normal Tissues
149(14)
Gordon Steel
Normal-Tissue Reactions to Radiotherapy
150(1)
What Determines the Severity of Normal-Tissue Damage?
150(1)
Controllable Factors
150(1)
Uncontrollable Factors
150(1)
The Proliferative Structure of Tissues
151(1)
Early-and Late-Responding Tissues
152(1)
Early-Responding Tissues
152(1)
Late-Responding Tissues
152(1)
Concepts of Normal-Tissue Tolerance and Therapeutic Gain
152(2)
Steepness of Dose-Response Curves
154(2)
Basic Properties of Dose-Response Curves
154(1)
What Determines the Steepness of Dose-Response Curves?
155(1)
Radiation Pathology
156(2)
Stochastic Effects
156(1)
Nonstochastic Effects
156(1)
Skin and Mucosae
157(1)
Lung
157(1)
Brain and Spinal Cord
158(1)
Quantification of Normal-Tissue Damage
158(2)
Visual Scoring Methods
158(1)
Assays of Tissue Function
158(1)
Stem-Cell Cloning Techniques
159(1)
The Volume Effect
160(3)
Introduction
160(1)
Basis of the Volume Effect
161(2)
Dose Fractionation in Radiotherapy
163(16)
Gordon Steel
Alan Nahum
Why We Fractionate in Radiotherapy
164(1)
Historical Approaches to Fractionation
164(2)
The Approaches of Strandqvist and Ellis
164(1)
The Contribution of Experimental Radiobiology
165(1)
The Fractionation Response of Early- and Late-Responding Tissues
166(5)
The Linear-Quadratic Approach to Fractionation
167(1)
Rationale of the LQ Approach
168(2)
Hypofractionation
170(1)
Effect of Overall Treatment Time
171(1)
Hyperfractionation and Accelerated Fractionation
172(2)
Hyperfractionation
172(1)
Accelerated Fractionation
173(1)
What Interfraction Interval for Multiple Fractions per Day?
174(1)
How to Respond to Gaps in Treatment
174(1)
Low Dose Rate: Rationale for Brachytherapy
174(5)
References 179(92)
Part C: Equipment
Kilovoltage X-Ray Units
187(10)
Tony Greener
Introduction
188(1)
Principles of X-Ray Generation
188(2)
X-Ray Production
188(1)
The X-Ray Spectrum
189(1)
Practical X-Ray Generators
190(2)
The X-Ray Tube
190(1)
Metal-Ceramic Tube Design
191(1)
Contact Therapy Tubes
191(1)
Target Angle and Radiation Distribution in Air
191(1)
X-Ray Tube Housing
191(1)
Tube Cooling System
191(1)
HT Generator and Rectification
192(1)
Ancillary Equipment
192(1)
Tube Support Stand
192(1)
System Control Unit and User Interface
192(1)
Machine Interlocks
193(1)
Beam Filtration
193(1)
Superficial Energies
194(1)
Orthovoltage Energies
194(1)
Filter Box
194(1)
Beam Collimation and Applicators
194(3)
Superficial Applicators
195(1)
Orthovoltage Applicators
195(2)
Linear Accelerators
197(44)
Les Loverock
Philip Mayles
Alan McKenzie
David Thwaites
Peter Williams
Introduction
198(1)
Principles of Linear Accelerators
199(1)
The Linac Components
200(15)
The Microwave Power Source
200(1)
The Magnetron
200(1)
The Klystron
201(2)
High Voltage Pulsed Power Supply or Modulator
203(1)
The Accelerating Waveguide
204(1)
TW or Travelling Waveguides
204(1)
SW or Standing Waveguides
205(1)
Comparison of Travelling and Standing Waveguides
206(1)
The Electron Gun
207(3)
Beam Steering and Focusing
210(1)
The Bending System
211(1)
90° Bending Magnet
212(1)
A 270deg; Magnet Using Hyperbolic Pole Faces
212(1)
A 270deg; Magnet with Locally Tilted Pole Pieces
213(1)
A 270deg; Three Sector System
213(1)
A 112.5deg; Double Focusing (Slalom Bend) System
214(1)
The Head Assembly
215(12)
Photon Beam Generation
215(1)
The X-Ray Target
215(1)
The Flattening Filter
215(1)
Visual Beam Position Indication
216(1)
Collimation of Rectangular Fields
216(2)
Multileaf Collimators
218(1)
Design Features and Relationship to Performance
219(4)
Mini and Micro Multileaf Collimators
223(2)
Beam Modifiers
225(1)
Mechanical Fixed or Motorized Wedge Filters
225(1)
Dynamic Wedges
225(1)
Accessory Holders
226(1)
Electron Beam Generation
226(1)
The Initial Beam
226(1)
Scattering Foil Systems
226(1)
Scanned Beam Systems
226(1)
Applicators
227(1)
The Gantry
227(4)
Drive Stand Gantry Support
227(1)
Drum Gantry Support
228(1)
The Isocentre
229(1)
Isocentre Distance, Isocentre Clearance and Isocentre Height
230(1)
Standard Coordinate Systems
231(1)
Ancillary Equipment
231(3)
Vacuum System
231(2)
Ion Pumps
233(1)
Circulating Water Supplies
234(1)
The Linac Control Systems
234(7)
Automatic Frequency Control (AFC)
234(1)
Energy Selection and Control
234(1)
Magnetron Driven Travelling Wave Systems
234(1)
Klystron Driven Standing Wave Systems
235(1)
Energy Monitoring
235(1)
Control of Total Dose, Dose Rate, Beam Position and Uniformity
236(1)
Dose Monitoring
237(1)
Beam Uniformity and Beam Position Monitoring
238(1)
Dosimetry Interlocks
239(2)
Cobalt Machines
241(10)
John Saunders
Introduction
241(1)
Basic Construction and Features
242(3)
The Source
242(1)
The Head
243(1)
Gantry
244(1)
Beam Modifiers
244(1)
Safety
245(2)
Leakage
245(1)
Area Radiation Monitors
246(1)
Wipe Tests
246(1)
Local Rules
246(1)
Mechanical Safety
247(1)
Installation of Cobalt Sources
247(4)
Source Specification
247(1)
Preparation
248(1)
Installation
248(1)
Definitive Calibration
249(2)
Simulators
251(10)
Jean-Claude Rosenwald
Introduction
251(2)
Description of the Standard Simulator
253(2)
X-Ray Tube and Generator
253(1)
Diaphragm Assembly
253(1)
Gantry
254(1)
Image Detection
254(1)
Table
255(1)
Control Console
255(1)
Special Features
255(6)
Computerized Control, Networking and Auto Setup
256(1)
Digital Imaging
256(1)
CT Option
256(2)
Virtual Simulation and Image Guided Radiotherapy
258(3)
Portal Imaging Devices
261(10)
Cephas Mubata
Introduction
261(1)
Film-Based Methods
262(1)
Electronic Portal Imaging Devices
263(8)
Fluorescent-Screen-Based Systems
264(2)
Matrix Devices
266(1)
The Matrix Ionisation Chamber
266(1)
Amorphous Silicon (a-Si) Devices
267(1)
Other Systems
268(3)
References 271(144)
Part D: Dose Measurement
Ionisation Chambers
279(24)
Pedro Andreo
Alan Nahum
David Thwaites
Introduction
280(2)
Physical and Operational Principles
282(4)
Influence of the Applied Voltage---The Ionisation Region
282(1)
Insulators and Guard Rings
283(1)
Electrometers
284(1)
Cables and Connectors
285(1)
Types of Chambers
286(10)
Free-Air Chambers
287(1)
Cavity Chambers
288(1)
Dosimetric Requirements for Cavity Chambers
289(2)
Cylindrical Chambers
291(1)
Plane-Parallel Chambers
292(4)
Monitoring Ionisation Chambers
296(1)
Determination of the Charge Produced
296(7)
Recombination
296(1)
Initial and General Recombination
296(1)
Collection Efficiency: Boag's Theory
297(1)
Collection Efficiency: The Two-Voltage Method
298(1)
Polarity Effect
299(1)
Leakage and Stem Effect
300(1)
Correction for the Changes in the Mass of Air within the Cavity
301(2)
Radiothermoluminescent Dosimeters and Diodes
303(18)
Ginette Marinello
Introduction
304(1)
Thermoluminescent Dosimetry
305(9)
Principles of TL Dosimetry
305(1)
Detectors
306(1)
Readers
306(4)
Dosimetric Properties and Influence Factors
310(1)
Reproducibility
310(1)
Background Signal
311(1)
Detection Threshold
311(1)
Fading
311(1)
Mass
312(1)
Dose
312(1)
Dose-Rate
313(1)
Temperature
313(1)
Energy
314(1)
Directional Effect
314(1)
Diode Dosimetry
314(6)
Principles of Diode Dosimetry
315(1)
Detectors
315(1)
Electrometers
315(2)
Dosimetric Properties and Influence Factors
317(1)
Repeatability and Reproducibility
317(1)
Fading
318(1)
Detection Threshold
318(1)
Background Signal
318(1)
Dose
318(1)
Dose-Rate
319(1)
Temperature
319(1)
Energy
319(1)
Directional Effect
320(1)
Conclusions
320(1)
Radiation Sensitive Films and Gels
321(12)
Mark Oldham
Introduction
322(1)
Film Dosimetry
322(6)
The Radiographic Process
322(1)
The Latent Image
322(1)
Film Processing
323(1)
Film Blackening and Optical Density
323(1)
Characteristic Film Curves
324(1)
Measuring a Dose Distribution with Film
325(1)
Radiochromic Film
326(1)
Practical Considerations When Using Film as a Dosimeter
327(1)
Radiation Sensitive Gels
328(5)
Fricke Gels
328(1)
Chemical Yield and the G Value
328(1)
Polyacrylamide Gels
329(2)
Comparison of Fricke with PAG Gels
331(1)
Practical Considerations when Using Radiation-Sensitive. Gels as a Dosimeter
331(2)
Absolute Dose Determination under Reference Conditions
333(34)
Pedro Andreo
Alan Nahum
David Thwaites
Introduction
334(1)
Codes of Practice Based on Air-Kerma Calibration
335(4)
Background
335(1)
From Air Kerma to the NK Factor
336(1)
From the Nk to the Nd, air Factor
336(2)
Using the ND, air Factor to Derive the Absorbed Dose to Water
338(1)
Codes of Practice Based on Absorbed Dose to Water Calibrations
339(6)
Introduction
339(2)
ND, w-Based Formalism
341(1)
Correction for the Radiation Quality of the Beam, kQ, Qa
341(1)
A Modified kQ, Qa for Electron Beams
342(1)
ND, W and KQ, Qo Options Available in Practice
343(2)
Inter-Relationship between Nk,-ND, air andair,- Codes of Practice
345(1)
Quantities Common to Both Approaches
346(6)
Stopping-Power Ratios
347(1)
General
347(1)
Stopping-Power Ratios for Electron Beams
347(1)
Stopping-Power Ratios for Photon Beams
347(2)
Mass Energy Absorption Coefficient Ratios
349(1)
Perturbation Correction Factors
349(2)
Mean Energy Expended in Air per Ion Formed, (Wair/e)
351(1)
Beam Quality Specification
351(1)
Kilovoltage X-Ray Beams
352(7)
Introduction
352(1)
Some Basic Physics
353(1)
Background to Air-Kerma Based Codes of Practice
354(1)
The Backscatter Method (Low Energies)
354(2)
The In-Phantom Method (Medium Energies)
356(1)
Very Low Energies
357(2)
Absorbed Dose to Water Calibration
359(1)
Protons and Heavy Charged Particles
359(2)
Phantoms for Dose Determination in Reference Conditions
361(4)
Introduction
361(1)
Megavoltage X-Ray and 60Co y-Ray Beams
362(1)
Electron Beams
362(2)
Kilovoltage X-Ray Beams
364(1)
Protons and Heavy Charged Particles
365(1)
Summary and Expected Future Developments
365(2)
Relative Dose Measurements and Commissioning
367(18)
Ivan Rosenberg
Introduction
368(7)
Rationale for Absolute and Relative Dose Measurements
368(1)
Pre-Measurement Preparation
368(2)
Choice of Phantoms
370(2)
Choice of Detectors
372(3)
Beam Quality
375(1)
Photon Measurements
375(7)
Virtual Source Position
375(1)
Relative-Depth Doses
376(1)
Build-Up Region
376(1)
Off-Axis Profiles
376(1)
Output Factors
377(1)
Wedge Dosimetry
378(1)
Secondary Blocking and Attenuators
379(1)
Asymmetric Independent Jaws
379(1)
Multi-Leaf Collimators
380(1)
Dynamic Treatments
380(1)
Arc Therapy
381(1)
Dynamic Wedges
381(1)
Other Dynamic Treatment Modalities
381(1)
Electron Measurements
382(3)
Virtual Source Position and Angular Spread
382(1)
Relative Depth Doses and Off-Axis Profiles
382(1)
Output Factors
383(2)
Appendix D Supplementary Details on Codes of Practice for Absolute Dose Determination
385(30)
Pedro Andreo
Alan Nahum
Stopping-Power Ratios
386(6)
Theory
386(2)
Stopping-Power Ratios for Electron Beams
388(2)
Stopping-Power Ratios for Photon Beams
390(2)
Perturbation Factors
392(9)
The Displacement Effect (Peff or Pdis)
392(2)
The Effect of the Chamber Wall (Pwall)
394(3)
The Effect of the Central Electrode (Pccl)
397(1)
The Electron Fluence (In-)Scattering Effect (Pcav)
398(2)
Concluding Remarks
400(1)
Beam-Quality Specification
401(6)
Photon Beam Quality Specifiers
401(3)
Electron-Beam Quality Specifiers
404(3)
Humidity Corrections for Ionisation Chambers
407(1)
Uncertainties in Reference Dosimetry
408(7)
Air-Kerma Based Formalism
410(2)
Absorbed-Dose-to-Water Formalism
412(3)
References 415(124)
Part E: Clinical Beams
From Measurements to Calculations
433(6)
Philip Mayles
Control of Dose Delivery
433(2)
Kilovoltage X-Ray Units
434(1)
Linear Accelerators
434(1)
Cobalt Units
434(1)
Relative Dose Distributions
435(3)
Variation of Dose with Distance from the Source
435(1)
Variation of Dose with Depth within the Patient
436(1)
Effect of Field Size and Shape
437(1)
Effect of Distance from the Central Axis
438(1)
Composition of Patient Tissue
438(1)
Representation of Dose Distributions: Isodose Curves and Surfaces
438(1)
Kilovoltage X-Rays
439(12)
Philip Mayles
Introduction
439(1)
Beam Quality
440(4)
Energy Spectrum and Role of Filtration
440(1)
Half Value Layer
440(4)
Depth Dose Characteristics
444(2)
Dose Distribution
446(1)
Beam Shaping
447(1)
Dose Calculations for Kilovoltage X-Rays
447(4)
Back-Scatter Factors
447(1)
Applicator Factors
448(1)
Cut-out Factors
449(1)
Example of Monitor Units (or Treatment Time) Calculation
449(2)
Megavoltage Photon Beams
451(32)
Philip Mayles
Peter Williams
Introduction
452(1)
Beam Quality
452(2)
Cobalt Units
452(1)
Linear Accelerators
452(2)
Characteristics of Photon Beams
454(7)
Dose Build-Up
454(2)
Variation of Dose with Depth
456(1)
Effect of Energy
456(1)
Effect of Field Size
456(1)
Effect of Source Skin Distance
457(1)
Off-Axis Dose Distribution
458(1)
Cobalt Beams
458(1)
Linear Accelerators
459(2)
Isodose Distributions
461(1)
Influence of Patient Shape and Composition
461(4)
Effect of Oblique Incidence
462(1)
Inhomogeneitics
463(2)
Beam Delineation
465(6)
Standard Collimators
465(1)
Requirements for Enhanced Beam Shaping
465(1)
Blocks
466(1)
Simple Beam Blocking
466(1)
Customised Blocking
467(1)
Multileaf Collimation
468(1)
Standard Multileaf Collimators
468(2)
Mini and Micro Multileaf Collimators
470(1)
Beam Modulation Techniques
471(12)
Mechanical Fixed or Motorised Wedge Filters
471(3)
Design of Mechanical Wedge Filters
474(2)
Dosimetry Considerations for Wedge Filters
476(1)
Dynamic Wedges
477(1)
Tissue Compensators
478(2)
Intensity Modulation with the MLC
480(3)
Manual Dose Calculations in Photon Beams
483(36)
Ivan Rosenberg
Introduction
484(1)
Parameters for Dose Calculations
484(18)
Definitions
484(1)
Percent Depth Dose
484(2)
Tissue Air Ratio
486(1)
Peak Scatter Factor
487(1)
Zero Field Tissue Air Ratio (TAR0)
487(1)
Scatter-Air Ratio
488(1)
Tissue Phantom Ratio TPR (Tissue Maximum Ratio TMR)
488(1)
Zero Field Tissue Maximum Ratio (TMR0)
489(1)
Equivalent Square
489(2)
Field Output Factor
491(1)
Phantom Scatter Factor Sp
491(1)
Normalised Peak Scatter Factor
492(1)
Collimator or Head Scatter Factor Sc
492(2)
Collimator Exchange Effect
494(1)
Wedge Transmission Factor
494(1)
Off-Axis Ratio
495(2)
Inverse Square Law
497(1)
Relationships and Derivations
498(1)
PDD from TAR
498(1)
TPR and TMR from TAR
499(1)
PDD from TMR
499(1)
PDD from One SSD to Another (TAR Method)
499(2)
Scatter Maximum Ratio
501(1)
Phantom Scatter Factor Sp from TAR
501(1)
Monitor Unit Calculations
502(17)
General Methodology
502(1)
Calibration Conventions
502(1)
In Air Calibration
503(1)
Standard SSD Calibration at dmax
503(1)
Isocentric Calibration
503(1)
Relationships with the Recommended Protocols for Absolute Dose Determination
504(1)
Calculations for Rectangular Fields at the Standard Distance
504(1)
SSD Beams
504(5)
Isocentric Beams
509(4)
Calculations for Modified Beams
513(1)
Blocked Fields
513(1)
Wedge Filters
513(1)
Non-Standard SSD
514(1)
Asymmetric Fields and Off-Axis Calculation Points
514(2)
Corrections for Inhomogeneities
516(3)
Electron Beams
519(20)
David Thwaites
Alan McKenzie
Introduction
520(1)
Depth-Dose Characteristics of Electron Beams
521(6)
Spectrum at the Patient Surface
521(1)
General Shape of Depth-Dose Curve
522(1)
Variation with Beam Energy
523(1)
Variation with Field Size
524(1)
Variation with Field Shape
525(1)
Variation with Source Skin Distance (SSD)
525(1)
Variation with Oblique Incidence
526(1)
Isodoses
527(5)
General Characteristics
527(1)
Electron Beam Flatness and Symmetry
528(2)
Electron-Beam Penumbra
530(1)
Variation of Isodoses with Field Size
530(1)
Variation of Isodoses with SSD
530(2)
Variation of Isodoses with Oblique Incidence
532(1)
Field Shaping/Shielding
532(2)
Field Shaping
532(1)
Internal Shielding/Backscattered Electrons
533(1)
Bolus/Energy Degraders
534(1)
Electron Scatter Effects
534(3)
Output Factors and Monitor Unit Calculations
537(2)
References 539(82)
Part F: Patient Dose Computation Methods
Principles of Patient Dose Computation
549(10)
Jean-Claude Rosenwald
General Requirements
549(2)
Accuracy
550(1)
Speed
550(1)
General Aspects
551(1)
Coordinate Systems and Geometrical Issues
551(3)
Absolute and Relative Dose
554(2)
Algorithm Classification
556(3)
Patient Dose Computation for Photon Beams
559(28)
Jean-Claude Rosenwald
Ivan Rosenberg
Glyn Shentall
David McKay
Physical Background
560(1)
Broad-Beam (Empirical) Methods
561(7)
Simple Beams in Water
561(1)
Tabulated Beam Data Representations
561(1)
Analytical Beam Representations
562(1)
Improvement of Off-Axis Calculations and Corrections for Wedge Filters
563(1)
Correction for Patient Shape and Inhomogeneities
563(1)
Patient Shape
563(1)
Patient Inhomogeneities
564(3)
Limitations and Drawbacks of Broad-Beam Methods
567(1)
Superposition Methods
568(17)
The Superposition Principle
568(1)
Primary-Scatter Separation
569(1)
Principle of the Method
569(2)
Application to Cobalt-60 and Medium-Energy X-Ray Beams
571(2)
Extension to Higher Energies
573(1)
Pencil-Beam Approach
574(1)
General
574(1)
Determination of ΨE, the Entrance Primary Energy Fluence
575(1)
Determination of KPB, the Pencil-Beam Kernels
576(1)
Some Practical Implementations
576(2)
Inhomogeneities and Other Limitations
578(1)
Point Kernel Convolution/Superposition
578(1)
General
578(1)
Determination of the Energy Fluence and Terma
579(1)
Determination of the Energy Deposition Point Kernels, K
579(3)
Beam Divergence and Tilting of the Kernels
582(1)
Kernel Scaling according to Tissue Density and Tissue Inhomogeneities
582(1)
Practical Implementation
583(2)
Concluding Remarks
585(2)
Patient Dose Computation for Electron Beams
587(16)
Alan Nahum
Introduction
588(1)
The Fermi-Eyges Pencil-Beam Algorithm Implementation (Hogstrom Model)
589(8)
General
589(1)
Theory of the Fermi-Eyges Pencil-Beam Model
590(2)
Adaptation of Fermi-Eyges Theory to the Treatment Situation
592(1)
Incorporation of Measured Depth-Dose Curves
593(1)
The Fair Weighting Factor
594(1)
The Final Expression for the Elementary Pencil
594(1)
The Photon Dose
595(1)
Practical Implementation for an Inhomogeneous Patient
595(1)
Input Data
596(1)
Measured Depth-Dose Distributions
596(1)
Dose Profiles
596(1)
Mean Energy at the Surface, E0
596(1)
The Initial Angular Spread, σθx
596(1)
The Penumbra Adjustment Factor, FMCS
596(1)
Limitations of the Fermi-Eyges Pencil-Beam Model
597(2)
Experimental Tests of Accuracy of Electron-Beam Treatment Planning Systems
599(1)
Other Electron-Beam Algorithms
600(1)
Concluding Remarks
601(2)
Monte-Carlo Based Patient Dose Computation
603(18)
Alan Nahum
Introduction
603(4)
Choice of Available Monte-Carlo Codes
607(2)
Treatment-Machine Simulation
609(3)
Monte-Carlo Simulation of the Dose Distribution in the Patient
612(1)
Monte-Carlo Treatment Planning Implementations
613(2)
Special Features of Monte-Carlo Based Treatment Planning
615(3)
Absolute Dose per Monitor Unit
615(2)
Dose to Medium or Dose to Water?
617(1)
Computer Hardware Considerations
618(1)
Concluding Remarks
618(3)
References 621(152)
Part G: Treatment Planning
Target Definition
637(10)
Anthony Neal
Introduction
637(1)
The International Commission on Radiation Units and Measurements Volumes
638(3)
Gross Tumour Volume
638(1)
Clinical Target Volume
639(1)
Planning Target Volume
639(1)
Treated Volume
640(1)
Irradiated Volume
640(1)
Organs at Risk
640(1)
Clinical Issues in Target Definition
641(3)
Poor Organ/Tumour Definition
641(1)
Inter-Observer Variation
642(1)
Internal Organ Movements
643(1)
ICRU 62 Additions to ICRU 50
644(1)
Conclusions and Future Trends
645(2)
Patient Data Acquisition
647(10)
Anthony Neal
Introduction
647(1)
Patient Positioning and Immobilisation
648(1)
Imaging for Treatment Planning
649(6)
Computed Tomography
649(3)
Magnetic Resonance Imaging
652(1)
Ultrasound
653(1)
Positron Emission Tomography
653(1)
Planar Radiographs
654(1)
Conclusions
655(2)
Magnetic Resonance Imaging in Treatment Planning
657(12)
Vincent Khoo
Introduction
658(1)
Principles of Magnetic Resonance Imaging
658(1)
Rationale for the Use of Magnetic Resonance Imaging in Treatment Planning
659(1)
Problems with the Use of Magnetic Resonance Imaging in Treatment Planning
660(4)
Electron Density Information
660(1)
Imaging of Bone
661(1)
Magnetic Resonance Image Distortion
661(1)
System-Related Distortions
662(1)
Object-Induced Distortions
663(1)
Magnetic Resonance Correction of Image Distortion
663(1)
Other Considerations Affecting Utilisation of Magnetic Resonance Imaging for Treatment Planning
664(1)
General Considerations
664(1)
Motion
664(1)
Methods to Allow the Use of Magnetic Resonance Imaging in Treatment Planning
665(2)
Image Segmentation
665(1)
Image Registration
666(1)
Clinical Sites of Magnetic Resonance Imaging Applications in Treatment Planning
667(1)
Conclusions
668(1)
Beam Definition---Virtual Simulation
669(12)
Vibeke Nordmark Hansen
Introduction
669(1)
Beam Definition Using Anatomical Set-Up
670(2)
Direct Simulation of the Beam Arrangement
670(1)
Specific Examples of Anatomical Set-Up
671(1)
Parallel Opposed Simple Fields
671(1)
Mantle Fields
671(1)
Tangential Breast Beams
672(1)
Computer-Based Beam Definition---The Traditional Approach
672(1)
Computer-Based Beam Definition---Virtual Simulation
673(8)
Principle of Virtual Simulation
673(1)
Beam Axis Direction
674(1)
Field Shaping
675(1)
Fitting MLC Leaves in Beam's-Eye-Views
675(1)
Digitally Reconstructed Radiographs
676(5)
Photon-Beam Treatment Planning Techniques
681(20)
Peter Childs
Christine Lord
Introduction
682(1)
Single Beam Treatments
682(2)
Kilovoltage Beams
682(1)
Megavoltage Beams
682(2)
Two Beam Arrangements
684(3)
Parallel Opposed Pair
684(1)
Beam Weighting
684(1)
Wedge Filters
685(1)
Tangential Beams
685(1)
Wedged Pair Beams
686(1)
Photon and Electron Beams
687(1)
Multiple Coplanar Beams
687(3)
Three-Beam Arrangements
687(2)
Four-Beam Arrangements
689(1)
Arrangements with More than Four Beams
689(1)
Non-Coplanar Beams
690(1)
Treatments in Inclined Planes
691(1)
Fixed Source Surface Distance Beams vs. Isocentric Treatments
692(2)
Extended SSD
694(1)
Matching Fields
695(6)
Abutting Fields with Parallel Axes
695(2)
Matching Single Fields to Parallel Opposed Pairs
697(1)
Marching Adjacent Beams in Inclined Planes
697(1)
Matching Electron to Photon Fields
698(3)
Electron-Beam Treatment Planning Techniques
701(18)
Alan McKenzie
David Thwaites
Introduction
702(1)
Checklist for Electron Treatment Planning
702(1)
Field Size and Coverage of the Target Volume
703(1)
Examples of Electron Planning
704(7)
Example A: Single-Electron Field with No Complications
704(1)
Example B: Use of Internal Shielding
705(3)
Example C: Single-Electron Field with Surface Inhomogeneities
708(1)
Example D: Single-Electron Field with Obliquity
709(2)
Field Matching
711(4)
Electron Arc Therapy
715(2)
Inhomogeneities and Electron Planning Algorithms
717(1)
Treatment Prescription
718(1)
Current and Future Developments
718(1)
Dose Evaluation of Treatment Plans
719(12)
Margaret Bidmead
Jean-Claude Rosenwald
Introduction
719(1)
Isodose Display
720(2)
Dose Volume Analysis
722(5)
Definition and Application of Dose Volume Histogram
722(2)
Methods for Dose Volume Histogram Calculation
724(1)
Sampling Methods
724(1)
Dose Binning and Graphical Representation
725(1)
Boolean Operations on Structures for Dose Volume Histogram Calculations
726(1)
Clinical Use and Limitations of Dose Volume Histograms
726(1)
Dose Statistics and Plan Scoring
727(4)
Doses at Reference Points and Data Derived from Dose Volume Histograms
727(1)
Conformity Index and Figures of Merit
728(3)
Biological Evaluation of Treatment Plans
731(42)
Alan Nabum
Gerald Kutcher
Introduction
732(1)
Tumour Control Probability
733(14)
A Radiobiologically-Based TCP Model
733(1)
General
733(1)
A Model for TCP Based on Poisson Statistics
733(3)
Consistency with Clinical Data
736(2)
Inhomogeneous Dose Distributions
738(1)
The Effect of Dose Nonuniformity on TCP
739(2)
Variation in Clonogenic Cell Density
741(1)
Applying the TCP Model to Patient Data
742(2)
The Effect of Hypoxia on Local Control: A Case Study
744(1)
Conclusions
745(2)
Normal Tissue Complication Probability
747(26)
General
747(1)
Lyman-Kutcher-Burman (L-K-B) Empirical Model
748(1)
Homogeneous Irradiation
748(2)
Inhomogeneous Irradiation
750(3)
Organ Architecture Models
753(1)
Serial Organs
753(1)
Parallel Organs
754(1)
The Relative Seriality Model
755(2)
Relationships between L-K, B, Serial and Parallel Models
757(1)
The Effect of Fraction Size
758(1)
Relationship of Models to Clinical Complications
759(1)
Radiation Proctitis
759(3)
Radiation Hepatitis (Radiation Induced Liver Disease)
762(4)
Radiation Pneumonitis
766(3)
Concluding Remarks
769(4)
References 773(148)
Part H: Quality Assurance
Rationale and Management of the Quality System
793(16)
Philip Mayles
David Thwaites
Jean-Claude Rosenwald
Definitions
794(1)
Requirements of a Quality System
794(2)
Quality-Control Procedures
796(1)
Basis for Tolerance Limits
796(5)
Statements of Accuracy
796(1)
Dose Effect Relationships and Accuracy
797(1)
Required Accuracy in Absorbed Dose Delivery
798(1)
Required Accuracy in Absorbed Dose Distributions
799(1)
Required Geometric Accuracy in Radiotherapy
799(1)
Overall Accuracy Requirements
800(1)
Accuracy Currently Achievable
801(2)
General
801(1)
Estimation of Achievable Uncertainties
801(2)
ICRU Dose Specification and Reporting
803(2)
Errors and Accidents
805(1)
Equipment Quality Assurance
806(3)
Equipment Used in External Beam Radiotherapy
806(1)
Steps in Equipment Quality Assurance
807(2)
Quality Control of Megavoltage Equipment
809(32)
Edwin Aird
Philip Mayles
Cephas Mubata
Introduction
810(2)
Quality Control of Linear Accelerators and Cobalt Machines
810(2)
Responsibilities
812(1)
Tolerances
812(1)
Isocentric Treatment Machines
812(10)
Mechanical Alignment of Isocentric Machines
814(1)
Optical Alignment Checks
814(1)
Definitive Mechanical Isocentre Assessment
815(1)
Isocentric Couch Rotation Axis
816(1)
Establishment of Vertical Axis
816(1)
Considerations Relating to the Mechanical Isocentre
817(1)
Radiation Beam Alignment
817(1)
Radiation Isocentre
817(1)
Radiation and Light Field Coincidence
818(1)
Considerations Relating to Radiation Alignment of the Beam
819(1)
Interpretation of Alignment Checks
820(2)
Alignment and Quality Control of Multileaf Collimators
822(2)
Leaf Calibration
823(1)
Alignment of the MLC to the Treatment Machine Axes
823(1)
Dynamic Leaf Movements
823(1)
Leakage between Leaves
824(1)
Variation with Gantry Angle
824(1)
Flatness and Symmetry of Photon Beams
824(2)
Considerations Relating to Beam Flatness and Symmetry
826(1)
Energy Checks
826(1)
Considerations Relating to Beam Energy
827(1)
Quality Control of Electron Beams
827(1)
Electron Flatness and Symmetry
827(1)
Electron Energy
827(1)
Energy Selection
827(1)
Quality-Control Energy Check
828(1)
Applicator Factors
828(1)
The Measurement of Percentage Depth Dose
828(1)
Output Measurement
829(4)
Strategies for Quality Control of Treatment Unit Calibration
829(1)
Definitive Calibration
830(1)
Routine Calibration
830(1)
Constancy Checks
831(1)
Frequency of Checks
831(1)
Use of Ionisation Chambers for Output Calibration
831(1)
Practical Issues in Photon Calibrations
832(1)
Calibration of Units Controlled by a Timer
832(1)
Electron Output
833(1)
Checks on Dosimeters
833(2)
Ionisation Chambers
833(1)
Thermoluminescent Dosimeters
834(1)
Diodes
834(1)
Phantoms and Phantom Materials
835(1)
Portal Imaging Devices
836(5)
Image Quality Assessment
836(1)
Subjective Image Analysis
836(1)
Objective Image Analysis
836(2)
Mechanical Stability
838(1)
Quality Control of Image Dam
839(2)
Quality Assurance of the Treatment Planning Process
841(26)
Jean-Claude Rosenwald
The Treatment Planning Process
842(1)
Definition of Treatment Planning
842(1)
Data Exchange in Radiotherapy
842(1)
Quality Assurance in Treatment Planning
843(1)
Patient Positioning and Acquisition of Anatomical Data
843(3)
Quality Assurance of Equipment Used for Patient Data Acquisition
844(1)
Procedures for Patient Data Acquisition
845(1)
Treatment Planning System
846(21)
Components and Functions of a Treatment Planning System
846(1)
Curve Digitiser
846(1)
Film Scanner
846(1)
Plotter/Printer
847(1)
Storage Devices
847(1)
Network Interfaces
848(1)
Software Functions
848(1)
Specification and Purchase Process
849(1)
Acceptance of the Treatment Planning System
850(1)
Objectives of Treatment Planning System Commissioning
850(1)
Aim of Commissioning and Risk Analysis
850(1)
Accuracy and Tolerances
851(2)
Tolerance Specification in Non-Uniform Dose Distributions
853(1)
Geometric Aspects of Treatment Planning System Commissioning
853(1)
Anatomical Data
854(2)
Machine Parameters
856(1)
Beam Definition and Representation
856(2)
Transfer of Beam Data to Simulator or Treatment Machine
858(1)
Dosimetric Aspects of Treatment Planning System Commissioning
858(1)
Qualitative Check of Dose Computation Features
858(1)
Basic Beam Data and the Construction of the Beam Data Library
858(1)
Quantitative Checks for Simple Situations Using Reference Data
859(1)
Quantitative Checks for Complex Situations
860(3)
Clinical Verification
863(1)
Periodic Checks of the Treatment Planning System
863(1)
Regular Quality Control Checks
863(1)
After Changes to the Beam Data Library
864(1)
After a New Software Release
864(1)
Individual Plan Checks
864(1)
Rationale
864(1)
Methodology
865(1)
Clinical Verification of IMRT Treatments
865(2)
Quality Control of Treatment Delivery
867(30)
Philip Evans
Ginette Marinello
Electronic Portal Imaging Devices
868(14)
Introduction
868(1)
Image Enhancement
868(1)
Point Operations
869(1)
Spatial Operations
869(1)
Transform Operations
870(1)
Image Comparison Techniques
870(1)
Reference Images
871(1)
Field Edge Determination
872(1)
Field Edge Matching
872(1)
Segmentation and Matching of Anatomy
872(2)
Measurement of Setup Errors
874(1)
Accuracy of Analysis Techniques
874(1)
Visual Inspection of Images
875(1)
Interpretation of Position Measurements
875(1)
Intervention in Treatment Delivery
876(1)
Dosimetric Applications
877(1)
Dosimetric Calibration
877(1)
Scatter Correction
878(1)
Plane Dosimetry
879(1)
Transit Dosimetry
879(1)
Compensator Design
880(1)
Other Applications
881(1)
Further Reading
882(1)
In Vivo Dosimetry
882(15)
Introduction
882(1)
Choice of Detectors and Action Levels
882(3)
Methodology
885(1)
Skin Dose Measurements
885(1)
Entrance Dose Measurements
885(2)
Exit Dose Measurements
887(1)
Target and Midplane Doses
887(1)
Intracavitary Dose Measurements
888(1)
Clinical Application
889(1)
Patient Dose Verification in External Beam Therapy
889(2)
Dose to Organs at Risks Close to or Outside the Irradiation Field
891(1)
Intraoperative Irradiation
892(1)
Brachytherapy
892(2)
Prosthesis Measurements
894(1)
Comparison between Centres: Mailed Dosimetry
894(3)
Recording and Verification---Networking
897(12)
Margaret Bidmead
Recording and Verification in External Beam Radiotherapy
898(1)
Control of the Treatment Machine
898(1)
Networking
898(1)
Implementation of the Record and Verify System
898(3)
Workflow in a Networked Department
898(2)
Data Entry and Checking
900(1)
Data Retrieval
900(1)
Computer-Assisted Setup
900(1)
Record Keeping
901(1)
Patient Verification
901(1)
System Management
901(2)
Passwords
901(1)
Tolerance Tables
902(1)
Backup and Archiving
903(1)
System Resilience
903(1)
Fault Reporting
903(1)
Error Control
903(1)
Types of Error and Measures to Avoid Them
903(1)
Training Requirements
904(1)
Use of Override Facilities
904(1)
Quality Assurance
904(1)
The Networked Department
905(4)
Integration with Hospital Information System
906(3)
Data Communication with DICOM
909(12)
John Sage
John Brunt
Philip Mayles
Introduction
910(1)
Elements of the Standard
910(4)
The Data Format
910(2)
Data Organisation
912(1)
DICOM Actions (Service Classes)
912(1)
DICOM Identifiers (Unique Identifiers)
912(1)
Data Communication
912(1)
Users and Providers
913(1)
DICOM Data Transfer
913(1)
The DICOM Conformance Statement
913(1)
Data Translation and Quality Assurance
914(1)
DICOM Applied to Diagnostic Image Data
914(1)
DICOM Print Function
914(1)
DICOM Worklist
915(1)
Media Storage
915(1)
Radiotherapy Data Objects
915(3)
DICOM RT Structure Set
916(1)
DICOM RT Plan
916(1)
DICOM RT Dose
916(1)
DICOM RT Image
916(1)
DICOM RT Treatment Record
917(1)
Other Data Formats
917(1)
DICOM RT Dependencies
917(1)
Data Visualisation in the Radiotherapy Process
918(1)
Target Volumes
918(1)
Planning RT Image Viewing
918(1)
Dose Planning
918(1)
Dose Plan Viewing
919(1)
Portal Image Viewing
919(1)
Recording Approval
919(1)
Summary
919(2)
References 921(148)
Part I: Special Techniques
Conformal and Intensity-Modulated Radiotherapy
943(32)
Steve Webb
General Overview
944(3)
Optimisation and Inverse Planning
947(10)
Why Optimisation?
947(1)
Philosophy of Optimisation and Inverse Planning
947(1)
Principles of Modern Inverse Planning
948(2)
What Can Be Optimised?
950(1)
Optimisation by Simulated Annealing
950(3)
Faster Optimisation by Projection-Backprojection
953(1)
Example of IMRT-Delivered Dose Distributions Computed by Inverse-Planning Optimisation
954(1)
Optimisation in Commercial Treatment-Planning Systems
954(3)
Intensity-Modulated Beam Delivery
957(18)
Classes of IMRT Delivery Technique and History
957(3)
The Multiple-Static-Field (MSF) Technique
960(4)
The Dynamic Multileaf Collimator (DMLC) Technique
964(3)
Tomotherapy
967(2)
Swept Pencil Beams
969(2)
The Moving Bar Technique
971(1)
Intensity-Modulated Arc Therapy (IMAT)
971(1)
Verification of IMRT
972(1)
The Future of IMRT
973(2)
Intensity-Modulated Radiotherapy: Practical Aspects
975(12)
C.-M. Charlie Ma
Helen Mayles
Philip Mayles
Introduction
976(1)
Requirements for Clinical Implementation
976(3)
Equipment, Space, and Shielding
976(1)
Time and Personnel
976(1)
Treatment Scheduling
977(1)
Staff Training
977(1)
Radiation Oncologists
977(1)
Physicists and Dosimetrists
978(1)
Treatment Radiographers
978(1)
Service Engineers
978(1)
Patient Education
979(1)
Guidelines on IMRT Treatments
979(8)
General Considerations
979(1)
Image Acquisition
979(2)
Structure Segmentation and Target Definition
981(1)
IMRT Treatment Planning
981(1)
Plan Validation and Quality Assurance
982(1)
Patient Immobilisation, Position Verification, and Target Localisation
983(1)
Treatment Delivery
984(3)
Stereotactic Techniques
987(18)
Jim Warrington
Introduction
988(1)
Clinical Indications
988(1)
Radiosurgery Equipment
988(1)
Gamma Units
988(1)
Linear Accelerator-Based Radiosurgery
989(1)
Stereotactic Frames
990(2)
Neurosurgical Frames
990(1)
Relocatable Stereotactic Frames
991(1)
Stereotactic Fiducial Systems
992(1)
Stereotactic Treatment Planning
993(3)
Beam Data Measurement
996(1)
Treatment Setup
997(1)
Pretreatment Quality Assurance
998(2)
Stereotactic Conformal Treatments and QA
1000(1)
Accuracy and Isodose Prescription
1001(1)
Stereotactic Radiotherapy to Extra-Cranial Sites
1001(2)
Conclusion
1003(2)
Proton Beams in Radiotherapy
1005(28)
Alejandro Mazal
Introduction
1006(1)
Physical Basis: The Interactions of Protons with Matter
1006(4)
Inelastic Interactions with the Nucleus
1007(1)
Inelastic Interactions with Atomic Electrons
1007(1)
Elastic Interactions with the Nucleus
1008(2)
Technological Basis of Proton Therapy
1010(10)
Types of Particle Accelerator
1010(1)
The Cyclotron
1010(2)
The Synchrocyclotron
1012(1)
The Isochronous Cyclotron with Separate Sectors
1012(1)
The Synchrotron
1013(1)
New Developments
1013(1)
General Technical Design Considerations
1014(1)
Beam Transport
1014(1)
Radiation Protection and Neutron Shielding
1015(1)
Beam Shaping: Tools and Dosimetry
1016(1)
Depth-Dose Curves: Range and Modulation
1017(1)
Lateral Dose Profiles and Penumbra
1018(1)
The Shaping of the Dose Distribution around a Target Volume
1018(1)
Dynamic Techniques of Beam Shaping
1019(1)
Treatment Implementation
1020(7)
Treatment Planning Systems
1020(1)
Calculation Models
1020(1)
The Effect of Heterogeneities
1020(1)
Tools to Assist in the Visualisation and the Evaluation of the Treatment
1021(1)
Comparison with Photon Dose Distributions
1022(1)
Patient Setup
1022(1)
Dosimetry
1023(3)
Radiobiological Considerations
1026(1)
Clinical Applications
1027(4)
Ophthalmic Applications
1027(2)
Intracranial Tumours
1029(1)
Stereotactic Radiosurgery
1030(1)
Other Sites Suitable for Proton Therapy
1031(1)
Economic and Functional Considerations
1031(1)
Conclusion
1032(1)
Total Body Irradiation
1033(10)
Philip Mayles
Ginette Marinello
Clinical Goals
1033(1)
Dose and Dose Rate
1034(1)
Dose Specification
1035(1)
Available Techniques
1035(2)
Custom-Designed Facilities
1035(1)
Use of a Standard Linear Accelerator
1036(1)
Dosimetry Considerations
1037(4)
Choice of Energy
1037(1)
Dose Measurement
1037(3)
Dose Calculation
1040(1)
Compensation
1041(1)
Summary
1041(2)
Total Skin Electron Irradiation
1043(10)
David Thwaites
Alan McKenzie
Ginette Marinello
Introduction
1043(1)
General Clinical and Patient-Related Problems
1044(1)
Physical and Practical Requirements
1044(7)
Dose Distribution along the Patient
1044(1)
Dose Distribution around the Patient
1045(1)
Beam Energy
1046(1)
X-Ray Contamination
1047(2)
Dose Rate and Treatment Time
1049(1)
Dosimetry
1049(2)
Conclusions
1051(2)
High-LET Modalities
1053(16)
Roland Sabattier
Oliver Jakel
Alejandro Mazal
Therapy with Neutrons
1053(7)
Introduction
1053(1)
Fast Neutron Beams
1054(1)
Fast Neutron Interactions in Biological Tissues
1054(1)
Beam Production
1055(1)
The Treatment Head and Equipment
1056(1)
Dosimetry
1057(1)
Microdosimetry
1058(1)
Clinical Use of Fast Neutrons
1058(1)
Conclusions
1059(1)
Boron Neutron Capture Therapy
1060(1)
Light and Heavy Ions
1060(9)
Introduction
1060(3)
Physical Parameters, Radiobiological Data and Treatment Planning
1063(1)
Accelerators, Beam-Delivery Systems, and PET Monitoring
1064(1)
Clinical Programs
1065(1)
Economic Aspects, Future Developments and Conclusions
1066(3)
References 1069(124)
Part J: Brachytherapy
Clinical Introduction to Brachytherapy
1093(8)
Peter Blake
History and Rationale for Brachytherapy
1093(8)
Intracavitary Brachytherapy
1094(1)
Cervix
1094(1)
Endometrium
1095(1)
Vagina
1095(1)
Other Sites
1095(1)
Interstitial Therapy
1095(1)
Head and Neck
1095(1)
Breast
1096(1)
Prostate Gland
1096(1)
Intraluminal Therapy: Bronchus and Oesophagus
1096(1)
Superficial Brachytherapy
1097(1)
Integration of Brachytherapy with External-Beam Therapy
1097(1)
Practical Considerations
1097(1)
Dose-Rate Effects in Brachytherapy
1098(1)
Medium- and High-Dose-Rate Brachytherapy
1098(1)
Pulsed Dose-Rate Brachytherapy
1098(1)
Current Weaknesses and Potential Developments
1099(2)
Calibration and Quality Assurance of Brachytherapy Sources
1101(16)
Colin Jones
Introduction
1102(1)
Particular Sources
1102(5)
Radium-226
1102(1)
Radon-222
1102(1)
Caesium-137
1103(1)
Iridium-192
1103(1)
Cobalt-60
1104(1)
Gold-198
1104(1)
Iodine-125
1104(1)
Beta Sources: Strontium-90, Yttrium-90, and Ruthenium-106
1105(1)
Other Sources
1105(1)
Palladium-103
1106(1)
Samarium-145
1106(1)
Americium-241
1106(1)
Ytterbium-169
1107(1)
Californium-252
1107(1)
Caesium-131
1107(1)
Specification of Brachytherapy Source Strength
1107(2)
Calibration of Brachytherapy Sources
1109(5)
Long Half-Life Sources of Low Activity (226Ra, 137Cs, and 60Co)
1111(1)
Sources Used in Automatic Afterloading Systems (137Cs, 192Ir, and 60Co)
1111(2)
Short Half-Life Sources of Low Activity Such as 198Au, 192Ir, and 125I Sources
1113(1)
Ophthalmic Applicators
1114(1)
Quality Assurance of Sealed Sources
1114(3)
Leakage and Contamination Checks
1114(1)
Radiography and Autoradiography
1115(2)
Afterloading Equipment for Brachytherapy
1117(14)
Margaret Bidmead
Colin Jones
Introduction
1117(1)
Manual Afterloading
1118(2)
Intracavitary Techniques
1118(1)
Interstitial Techniques
1119(1)
Remote-Controlled Afterloading: Low and Medium Dose Rates
1120(4)
Applicators
1121(3)
Remote-Controlled Afterloading: High Dose Rates
1124(2)
Endovascular Brachytherapy
1125(1)
PDR MicroSelectron
1126(1)
Aspects of Quality Assurance for Afterloading Systems
1126(5)
Source Positioning
1126(2)
Machine Function
1128(1)
Facility Checks
1128(1)
Emergency Procedures
1128(1)
Other
1129(2)
Dose Calculation for Brachytherapy Sources
1131(10)
Philip Mayles
Introduction
1131(1)
Dose from a Point Source
1132(1)
Extension to a Line Source
1133(2)
The TG43 Formalism
1135(1)
Application of TG43 to 192Ir Dosimetry
1135(1)
Application of TG43 to 125I Dosimetry
1136(1)
Decay Correction
1136(1)
Conversion Factors for Older Methods of Activity Specification
1137(1)
The Roentgen
1137(1)
Radium Equivalence
1138(1)
Activity Units
1138(1)
Limitations of Brachytherapy Dose Calculations
1138(3)
Unknown Source Orientation
1139(1)
Shielding by Other Sources
1139(1)
Applicator Shielding
1139(1)
Inhomogeneity Corrections
1139(2)
Brachytherapy Treatment Planning
1141(40)
Margaret Bidmead
Dorothy Ingham
Jean-Claude Rosenwald
Interstitial Implants
1142(10)
Introduction
1142(1)
Paris Predictive Dose-Planning System
1143(1)
Basic Principles
1143(1)
Single Source
1143(1)
Planar Implants
1144(1)
Nonplanar Implants
1144(1)
Dose Specification and Calculation
1144(3)
Dose Calculation for Real Implants
1147(1)
Crossline Curves
1147(1)
Escargot Curves
1148(1)
Calculation of Reference Dose Rate
1148(2)
Example Iridium Implant Calculation
1150(1)
ICRU Recommendations on Interstitial Brachytherapy Dosimetry
1150(1)
Description of Volumes
1151(1)
Reference Dose
1151(1)
High and Low Dose Volumes
1151(1)
Dose Uniformity
1152(1)
Implant Duration
1152(1)
Gynaecological Intracavitary Treatments
1152(12)
Introduction
1152(1)
Manchester Radium System
1152(2)
Extension of Manchester System to Low-Dose-Rate Remote Afterloading
1154(1)
Geometrical Considerations
1154(1)
Source Loading Pattern
1155(1)
Optimisation
1156(1)
HDR Treatment of Gynaecological Carcinomas
1157(1)
Combined Intracavitary and External-Beam Therapy
1158(1)
ICRU Recommendations on Gynaecological Brachytherapy
1159(1)
Target and Treatment Volumes
1159(1)
Dose to the Bladder
1160(1)
Dose to the Rectum
1160(2)
Dose to the Pelvic Wall
1162(1)
Total Reference Air Kerma
1162(1)
Time-Dose Pattern
1162(2)
High-Dose-Rate Techniques for Non Gynaecological Sites
1164(1)
Carcinoma of the Bronchus and Oesophagus
1164(1)
Carcinoma of the Nasopharynx
1165(1)
Carcinoma of the Breast
1165(1)
Specialised Moulds and Applicators
1165(1)
Prostate Brachytherapy
1165(3)
Dosimetry Considerations for Brachytherapy in General
1168(4)
Sealed Source Dosimetry
1168(1)
Methods of Implant Reconstruction
1169(2)
Computerised Dosimetry
1171(1)
Optimisation in Afterloading Brachytherapy
1172(9)
Image-Based Planning
1172(2)
Approaches to Optimisation in Brachytherapy
1174(1)
Surface Optimisation
1174(1)
Volume Optimisation
1175(2)
Dose Volume Analysis
1177(4)
Radiobiology of Brachytherapy
1181(12)
Roger Dale
Introduction
1182(1)
α/β Ratios
1182(1)
Repair Rates (μ Values)
1182(2)
The Concept of Biological Dose
1184(3)
Effect of Cellular Repopulation on Biological Dose
1184(1)
Fractionated High Dose-Rate (FHDR) Brachytherapy
1185(1)
Dose-Rate Effects
1185(1)
Continuous Low Dose-Rate (CLDR) Brachytherapy
1186(1)
The Concept of Equivalence
1187(1)
Intercomparisons between CLDR and FHDR
1187(2)
Pulsed Brachytherapy
1189(1)
Dose Gradients and Integrated Biological Response
1189(1)
Consequences of Dynamic Changes during the Course of a Brachytherapy Treatment
1190(1)
The RBE Effect in Brachytherapy
1191(2)
References 1193(32)
Part K: Therapy with Unsealed Sources
Dosimetry of Unsealed Sources
1205(6)
Maggie Flower
Jamal Zweit
Medical Internal Radiation Dosimetry (MIRD) in Theory
1205(2)
MIRD in Practice
1207(1)
Dose-Limiting Organs
1208(1)
Patient-Specific Calculations
1209(1)
Alternative Dosimetry Methods
1209(2)
In Vivo Dosimetry
1209(1)
Theoretical Approaches
1210(1)
Radionuclide Selection for Unsealed Source Therapy
1211(8)
Maggie Flower
Jamal Zweit
Mark Atthey
Introduction
1211(1)
Beta Emitters
1212(3)
Auger-Electron Emitters
1215(1)
Alpha Emitters
1216(1)
Radiochemical Conjugation
1216(1)
Radiobiological Considerations
1216(1)
Matched Pairs for Imaging/Therapy
1217(2)
Radiopharmaceutical Targeting for Unsealed Source Therapy
1219(6)
Maggie Flower
Jamal Zweit
Introduction
1219(1)
Intracellular Mechanisms
1220(1)
Incorporation into DNA
1220(1)
Metabolic Processes
1220(1)
Cell-Surface Receptors
1221(1)
Hormones
1221(1)
Peptides
1221(1)
Antibodies
1221(1)
Extracellular Mechanisms
1222(1)
Bone-Seeking Agents
1222(1)
Radiolabelled Cells
1222(1)
Intra-Arterial Infusion
1222(1)
Intracavitary Routes
1223(1)
Intralesional Instillation
1223(1)
Endovascular Catheters
1223(1)
Current Status of Therapy Using Unsealed Sources
1223(2)
References 1225(72)
Part L: Radiation Protection in Radiotherapy
Theoretical Background to Radiation Protection
1233(12)
Mike Rosenbloom
Basic Concepts
1234(2)
Deterministic and Stochastic Effects
1234(1)
Equivalent Dose
1234(1)
Effective Dose
1235(1)
Risk Estimation
1236(6)
Sources of Data for Risk Estimates
1236(2)
Dose and Dose-Rate Effectiveness Factor
1238(1)
Low Dose Threshold Theories
1238(1)
Relative and Absolute Risks
1238(1)
Effect of Age at Exposure and Lifetime Risk
1239(1)
The Concept of Detriment
1239(1)
Risk Coefficients
1239(1)
Risk Coefficients for Partial Body Irradiation
1240(1)
Effect of Radiation on the Developing Foetus
1241(1)
Principles of Radiation Protection
1242(3)
Practices and Interventions
1242(1)
Basis for Dose Regulation
1242(1)
Limitation of Dose to Staff
1243(1)
Limitation of Dose to the General Public
1243(1)
Dose Constraints
1243(1)
Risk Assessment
1243(2)
Radiation Protection Regulation
1245(12)
Mike Rosenbloom
Philip Mayles
The Regulatory Framework
1246(1)
Protection of Staff and the Public
1247(4)
Designated Areas
1247(1)
Local Rules
1247(1)
Dose Limits for Staff and Public
1248(1)
Employees
1248(1)
Other Persons
1248(1)
Classification and Monitoring of Staff
1249(1)
Dose Limitation in Special Situations: Comforters and Carers
1249(1)
Qualified Expert (or Radiation Protection Adviser)
1250(1)
Risk Assessment
1250(1)
Critical Examination of Equipment
1250(1)
Contingency Planning
1250(1)
Protection of the Patient
1251(1)
Justification of Medical Exposures
1251(1)
Optimisation of Exposures
1251(1)
Diagnostic Reference Levels
1252(1)
Medical Physics Expert
1252(1)
Other Requirements
1252(1)
Licensing Arrangements
1252(2)
Storage of Radioactive Material
1253(1)
Disposal of Radioactive Waste
1253(1)
Administration of Radioactive Substances
1254(1)
Transport of Radioactive Substances
1254(3)
Practical Radiation Protection in Radiotherapy
1257(28)
Mike Rosenbloom
Philip Mayles
Design of External Beam Treatment Facilities
1258(11)
Components of Radiation
1258(1)
Primary Radiation
1259(1)
Leakage Radiation
1259(1)
Scattered Radiation
1260(1)
Neutrons and Induced Radioactivity
1260(2)
Barrier Attenuation
1262(1)
Treatment-Room Design Calculations
1262(1)
Primary Barriers
1263(1)
Secondary Barriers
1263(1)
Room Entrances: Protection against Scattered Radiation
1264(1)
Room Entrances: Protection against Neutrons
1264(1)
Skyshine
1265(1)
Choice of Materials
1265(1)
Interlocks and Other Issues
1266(1)
Upgrading Existing Treatment Rooms
1267(1)
Protection Surveys
1267(1)
Neutron Monitoring
1268(1)
Design of Facilities for Sealed and Unsealed Source Therapy
1269(2)
Remote Afterloading
1269(1)
Facilities for Unsealed-Source Therapy
1270(1)
Equipment and Source Handling
1271(4)
Teletherapy Isotope Sources
1271(1)
Afterloading Equipment
1272(1)
Manipulation of Low Activity Brachytherapy Sources
1272(1)
Unsealed Sources
1273(1)
Dispensing and Handling of Unsealed Radioactive Substances
1273(1)
Monitors for Working with Unsealed Radioisotopes
1274(1)
Monitoring of Staff Working with Unsealed Radioactive Substances
1274(1)
Contingency Arrangements
1275(1)
Patient Treatments
1275(6)
Management of Brachytherapy Patients
1275(1)
Manual Afterloading
1275(1)
Automatic Afterloading
1275(1)
Patients with Permanent Implants Leaving Hospital
1275(1)
Management of the Patient Undergoing Unsealed-Source Radiotherapy
1276(1)
In-Patient Care
1276(1)
Patient Leaving Hospital
1277(2)
Advice to Patients and Carers
1279(1)
Death of Patients Containing Radioactive Materials
1280(1)
Risks Associated with Radiotherapy Treatment
1281(4)
Radiotherapy of Patients of Child-Bearing Age
1281(1)
External-Beam Therapy of Potentially Pregnant Women
1281(1)
Unsealed-Source Therapy of Pregnant or Nursing Mothers
1281(1)
Irradiation of the Gonads
1282(1)
Second Cancer Risk from Radiotherapy
1282(1)
Deterministic Risk of Organ Damage
1283(1)
Patients with Pacemakers
1283(2)
Appendix L Radiation Protection Regulation in the United Kingdom
1285(12)
Philip Mayles
Mike Rosenbloom
U.K. Regulatory Framework
1286(6)
Introduction
1286(1)
Ionising Radiation Regulations 1999
1287(1)
Dose Limits
1287(1)
Investigations
1287(1)
Control of Areas
1287(1)
Equipment
1288(1)
Radiation Protection Adviser
1288(1)
Radiation Protection Supervisors
1288(1)
Training
1288(1)
Ionising Radiation (Medical Exposures) Regulations 2002
1289(1)
Definition of Roles
1289(1)
Optimisation
1289(1)
Investigation of Errors
1290(1)
Training
1290(1)
Equipment
1290(1)
Radiation (Emergency Preparedness and Public Information) Regulations 2001
1290(1)
Radioactive Substances Act 1993 Control of Sources and Waste Disposal
1290(1)
Administration of Radioactive Substances to Patients
1291(1)
The Radioactive Material (Road Transport) Regulations 2002
1291(1)
Example Wall-Thickness Calculations
1292(3)
Local Rules for Handling Radioactive Sources
1295(2)
References 1297(98)
Part M: Reference Data
Tables M.1 Physical Constants and Useful Data
1305(3)
Jean-Claude Rosenwald
Tables M.2 Electron Stopping Powers, Ranges, and Radiation Yields
1308(27)
Alan Nahum
Tables M.3 Photon Interaction Coefficients
1335(53)
Alan Nahum
Tables M.4 Radioactive Nuclides Used in Radiotherapy
1388(7)
Philip Mayles
References 1395(2)
Index 1397


Clatterbridge, UK Clatterbridge Centre for Oncology, U.K. Institute Curie, Paris, France