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Comparison of Algorithems AAA,PBC / Radouane Haddadi yaser
Titre : Comparison of Algorithems AAA,PBC Type de document : texte imprimé Auteurs : Radouane Haddadi yaser, Auteur ; Khoudri, Directeur de thèse Editeur : Setif:UFA Année de publication : 2017 Importance : 1 vol. (63 f.) Langues : Français (fre) Catégories : Thèses & Mémoires:Physique Mots-clés : Radiothérapie
Algorithme de planification de traitement AAA
PBC
HétérogénéitéRésumé :
Ce travail vise à comparer deux algorithmes de planification de traitement en radiothérapie
AAA et PBC dans des conditions différentes.
Les sujets suivants sont étudiés et discutés:
- Radiothérapie et paramètres dosimétriques
- Algorithmes AAA et PBC
- La comparaison entre les deux algorithmes
Dans ce travail, nous avons comparé les deux algorithmes et étudié la différence entre eux en
termes de précision.Note de contenu :
Contents
Summary I
List of Abbreviations II
List of Figures III
Introduction 1
I.Chapter I: Radiotherapy and Dosimetric Parameters 2
I.1 Introduction 3
I.2 External Radiotherapy 3
o I.2.1 Definition 3
I.3 Linear Accelerator 3
o I.3.1 Definition 3
o I.3.2 Operating Principle 4
o I.3.3 Components 4
I.3.3.1 Drive stand 4
I.3.3.2 Klystron 5
I.3.3.3 Electron Gun 5
I.3.3.4 Accelerator Guide 6
I.3.3.5 Gantry 6
I.3.3.6 Treatment Head 6
I.3.3.7 Multi Leaf Collimator (MLC) 7
I.4 Dosimetry 8
o I.4.1 Definition 8
I.5 Dosimetric Parameters 8
o I.5.1 Radiation Dosimetric Parameters 8
I.5.1.1 Particle Fluence 8
I.5.1.2 Energy Fluence 8
I.5.1.3 Particle Fluence Rate 8
I.5.1.4 Energy Fluence Rate 8
I.5.1.5 Dosimetric Quantities 8
I.5.1.6 Kerma 8
I.5.1.7 Cema 9
I.5.1.8 Absorbed Dose 9
I.5.1.9 Electronic Equilibrium 9
I.5.1.10Influence of Density and Atomic Number 9
o I.5.2 Dosimetric Parameters for Dose Calculation 10
I.5.2.1 Dosimetric Function 10
I.5.2.2 Buildup Region 10
I.5.2.3 Radiation Beam Field Size 10
I.5.2.4 Central Axis Dose 11
I.5.2.4.1 SSD Setup- Percentage Depth Dose (PDD) 11
I.5.2.4.2 SAD Setup-Tissue Air Ratio 11
I.5.2.4.3 Relation between PDD and TPR 12
I.5.2.5 Dose Profile 12
I.5.2.6 Isodose Distribution 13
I.5.2.7 Inhomogeneity Corrections 14
I.6 Conclusion 14
II. Chapter II: AAA and PBC Algorithms 15
II.1 Introduction 16
II.2 The Calculation Models 16
II.3 AAA (Anisotropic Analytical Algorithm) 16
o II.3.1 Definition 16
o II.3.2Implantation in eclipse 16
o II.3.3 Clinical Beam Modeling with the Multiple-Source Model 17
II.3.3.1 Primary Source Modeling 17
II.3.3.1.1 Photon beam spectrum 17
II.3.3.1.2 Mean energy 18
II.3.3.1.3 Intensity profile 19
II.3.3.1.4 Electron contamination 19
II.3.3.2 Second Source Modeling 20
II.3.3.2.1 Second source energy Fluence 20
II.3.3.2.2 Second source parameters 20
II.3.3.3 Patient Scatter Model 21
II.3.3.3.1 Scatter Kernels 21
II.3.3.3.2 Beamlets 21
o II.3.4 Configuration of anisotropic analytical algorithm (AAA) 23
II.3.4.1 Beam data measurements for AAA 23
II.3.4.1.1Required Measurements for Open Fields 23
II.3.4.1.2Required measurements for wedges fields 23
o II.3.5 Dose Calculation for Photon Beams 24
II.3.5.1 Calculation of the contribution of contamination electrons 25
II.3.5.2 Calculation of the total dose distribution 25
II.4PBC (Pencil Beam Convolution algorithm) 25
o II.4.1 Definition 25
o II.4.2 Measurement by PBC algorithms 26
II.4.2.1 before measuring beam data 26
II.4.2.2 Measuring Beam Data 26
o II.4.3 Generating configured beam data 27
II.4.3.1Data generated in configuration 27
o II.4.4 Dose calculation by PBC algorithms 29
II.4.4.1 Dose calculation for standard depth 30
II.4.4.2 Dose calculation at Arbitrary point 30
II.4.4.3 Calculation of fixed wedge 31
II.4.4.4 Calculation of motorized wedge 31
II.4.4.5 Calculation of patient model corrections 31
II.4.4.6 Calculation of treatment time 32
II.5 Conclusion 32
III. Chapter III : Comparison between AAA and PBC 33
III.1 Introduction 34
III.2 Objective 34
III.3 Principle 34
III.4 Material 34
III.5 Methods of Calculations 35
o III.5.1 Creation of phantom (water, 1layer, 2layers) 35
o III.5.2 Insertion of different parameters 35
o III.5.3 Parameters Calculation 37
III.6 Results and Analysis 38
o III.6.1 6 MV 38
III.6.1.1 Phantom 1: Homogenous 38
III.6.1.1.1 Dose values 38
III.6.1.1.2 Dose Profiles and PDD 39
III.6.1.1.3 Isodose curves 39
III.6.1.1.4 Comments 40
III.6.1.1.5 Analysis 40
III.6.1.2 Phantom 2: Containing a layer of heterogeneity (HU=-1000) 40
III.6.1.2.1 Dose values 40
III.6.1.2.2 Dose Profiles and PDD 41
III.6.1.2.3 Isodose curves 41
III.6.1.2.4 Comments 42
III.6.1.2.5 Analysis 42
III.6.1.3 Phantom 3: Containing a layer of heterogeneity (HU=-800) 42
III.6.1.3.1 Dose values 42
III.6.1.3.2 Dose Profiles and PDD 43
III.6.1.3.3 Isodose curves 43
III.6.1.3.4 Comments 44
III.6.1.3.5 Analysis 44
III.6.1.4 Phantom 4: Containing 2 layers of heterogeneity (HU=-1000) 44
III.6.1.4.1 Dose values 44
III.6.1.4.2 Dose Profiles and PDD 45
III.6.1.4.3 Isodose curves 45
III.6.1.4.4 Comments 46
III.6.1.4.5 Analysis 46
III.6.1.5 Phantom 5: Containing 2 layers of heterogeneity (HU=-800) 46
III.6.1.5.1 Dose values 47
III.6.1.5.2 Dose Profiles and PDD 47
III.6.1.5.3 Isodose curves 48
III.6.1.5.4 Comments 48
III.6.1.5.5 Analysis 48
o III.6.2 18 MV 49
III.6.2.1 Phantom 1: Homogenous 49
III.6.2.1.1 Dose values 49
III.6.2.1.2 Dose Profiles and PDD 50
III.6.2.1.3 Isodose curves 50
III.6.2.1.4 Comments 51
III.6.2.1.5 Analysis 51
III.6.2.2 Phantom 2: Containing a layer of heterogeneity (HU=-1000) 51
III.6.2.2.1 Dose values 51
III.6.2.2.2 Dose Profiles and PDD 52
III.6.2.2.3 Isodose curves 52
III.6.2.2.4 Comments 53
III.6.2.2.5 Analysis 53
III.6.2.3 Phantom 3: Containing a layer of heterogeneity (HU=-800) 53
III.6.2.3.1 Dose values 53
III.6.2.3.2 Dose Profiles and PDD 54
III.6.2.3.3 Isodose curves 54
III.6.2.3.4 Comments 55
III.6.2.3.5 Analysis 55
III.62.4 Phantom 4: Containing 2 layers of heterogeneity (HU=-1000) 55
III.6.2.4.1 Dose values 56
III.6.2.4.2 Dose Profiles and PDD 56
III.6.2.4.3 Isodose curves 57
III.6.2.4.4 Comments 57
III.6.2.4.5 Analysis 57
III.6.1.5 Phantom 5: Containing 2 layers of heterogeneity (HU=-800) 58
III.6.2.5.1 Dose values 58
III.6.2.5.2 Dose Profiles and PDD 59
III.6.2.5.3 Isodose curves 59
III.6.2.5.4 Comments 60
III.6.2.5.5 Analysis 60
III.7 Discussion of Results 60
III.8 Conclusion 62
Conclusion 63
Bibliography
AnnexCôte titre : MAPH/0215 Comparison of Algorithems AAA,PBC [texte imprimé] / Radouane Haddadi yaser, Auteur ; Khoudri, Directeur de thèse . - [S.l.] : Setif:UFA, 2017 . - 1 vol. (63 f.).
Langues : Français (fre)
Catégories : Thèses & Mémoires:Physique Mots-clés : Radiothérapie
Algorithme de planification de traitement AAA
PBC
HétérogénéitéRésumé :
Ce travail vise à comparer deux algorithmes de planification de traitement en radiothérapie
AAA et PBC dans des conditions différentes.
Les sujets suivants sont étudiés et discutés:
- Radiothérapie et paramètres dosimétriques
- Algorithmes AAA et PBC
- La comparaison entre les deux algorithmes
Dans ce travail, nous avons comparé les deux algorithmes et étudié la différence entre eux en
termes de précision.Note de contenu :
Contents
Summary I
List of Abbreviations II
List of Figures III
Introduction 1
I.Chapter I: Radiotherapy and Dosimetric Parameters 2
I.1 Introduction 3
I.2 External Radiotherapy 3
o I.2.1 Definition 3
I.3 Linear Accelerator 3
o I.3.1 Definition 3
o I.3.2 Operating Principle 4
o I.3.3 Components 4
I.3.3.1 Drive stand 4
I.3.3.2 Klystron 5
I.3.3.3 Electron Gun 5
I.3.3.4 Accelerator Guide 6
I.3.3.5 Gantry 6
I.3.3.6 Treatment Head 6
I.3.3.7 Multi Leaf Collimator (MLC) 7
I.4 Dosimetry 8
o I.4.1 Definition 8
I.5 Dosimetric Parameters 8
o I.5.1 Radiation Dosimetric Parameters 8
I.5.1.1 Particle Fluence 8
I.5.1.2 Energy Fluence 8
I.5.1.3 Particle Fluence Rate 8
I.5.1.4 Energy Fluence Rate 8
I.5.1.5 Dosimetric Quantities 8
I.5.1.6 Kerma 8
I.5.1.7 Cema 9
I.5.1.8 Absorbed Dose 9
I.5.1.9 Electronic Equilibrium 9
I.5.1.10Influence of Density and Atomic Number 9
o I.5.2 Dosimetric Parameters for Dose Calculation 10
I.5.2.1 Dosimetric Function 10
I.5.2.2 Buildup Region 10
I.5.2.3 Radiation Beam Field Size 10
I.5.2.4 Central Axis Dose 11
I.5.2.4.1 SSD Setup- Percentage Depth Dose (PDD) 11
I.5.2.4.2 SAD Setup-Tissue Air Ratio 11
I.5.2.4.3 Relation between PDD and TPR 12
I.5.2.5 Dose Profile 12
I.5.2.6 Isodose Distribution 13
I.5.2.7 Inhomogeneity Corrections 14
I.6 Conclusion 14
II. Chapter II: AAA and PBC Algorithms 15
II.1 Introduction 16
II.2 The Calculation Models 16
II.3 AAA (Anisotropic Analytical Algorithm) 16
o II.3.1 Definition 16
o II.3.2Implantation in eclipse 16
o II.3.3 Clinical Beam Modeling with the Multiple-Source Model 17
II.3.3.1 Primary Source Modeling 17
II.3.3.1.1 Photon beam spectrum 17
II.3.3.1.2 Mean energy 18
II.3.3.1.3 Intensity profile 19
II.3.3.1.4 Electron contamination 19
II.3.3.2 Second Source Modeling 20
II.3.3.2.1 Second source energy Fluence 20
II.3.3.2.2 Second source parameters 20
II.3.3.3 Patient Scatter Model 21
II.3.3.3.1 Scatter Kernels 21
II.3.3.3.2 Beamlets 21
o II.3.4 Configuration of anisotropic analytical algorithm (AAA) 23
II.3.4.1 Beam data measurements for AAA 23
II.3.4.1.1Required Measurements for Open Fields 23
II.3.4.1.2Required measurements for wedges fields 23
o II.3.5 Dose Calculation for Photon Beams 24
II.3.5.1 Calculation of the contribution of contamination electrons 25
II.3.5.2 Calculation of the total dose distribution 25
II.4PBC (Pencil Beam Convolution algorithm) 25
o II.4.1 Definition 25
o II.4.2 Measurement by PBC algorithms 26
II.4.2.1 before measuring beam data 26
II.4.2.2 Measuring Beam Data 26
o II.4.3 Generating configured beam data 27
II.4.3.1Data generated in configuration 27
o II.4.4 Dose calculation by PBC algorithms 29
II.4.4.1 Dose calculation for standard depth 30
II.4.4.2 Dose calculation at Arbitrary point 30
II.4.4.3 Calculation of fixed wedge 31
II.4.4.4 Calculation of motorized wedge 31
II.4.4.5 Calculation of patient model corrections 31
II.4.4.6 Calculation of treatment time 32
II.5 Conclusion 32
III. Chapter III : Comparison between AAA and PBC 33
III.1 Introduction 34
III.2 Objective 34
III.3 Principle 34
III.4 Material 34
III.5 Methods of Calculations 35
o III.5.1 Creation of phantom (water, 1layer, 2layers) 35
o III.5.2 Insertion of different parameters 35
o III.5.3 Parameters Calculation 37
III.6 Results and Analysis 38
o III.6.1 6 MV 38
III.6.1.1 Phantom 1: Homogenous 38
III.6.1.1.1 Dose values 38
III.6.1.1.2 Dose Profiles and PDD 39
III.6.1.1.3 Isodose curves 39
III.6.1.1.4 Comments 40
III.6.1.1.5 Analysis 40
III.6.1.2 Phantom 2: Containing a layer of heterogeneity (HU=-1000) 40
III.6.1.2.1 Dose values 40
III.6.1.2.2 Dose Profiles and PDD 41
III.6.1.2.3 Isodose curves 41
III.6.1.2.4 Comments 42
III.6.1.2.5 Analysis 42
III.6.1.3 Phantom 3: Containing a layer of heterogeneity (HU=-800) 42
III.6.1.3.1 Dose values 42
III.6.1.3.2 Dose Profiles and PDD 43
III.6.1.3.3 Isodose curves 43
III.6.1.3.4 Comments 44
III.6.1.3.5 Analysis 44
III.6.1.4 Phantom 4: Containing 2 layers of heterogeneity (HU=-1000) 44
III.6.1.4.1 Dose values 44
III.6.1.4.2 Dose Profiles and PDD 45
III.6.1.4.3 Isodose curves 45
III.6.1.4.4 Comments 46
III.6.1.4.5 Analysis 46
III.6.1.5 Phantom 5: Containing 2 layers of heterogeneity (HU=-800) 46
III.6.1.5.1 Dose values 47
III.6.1.5.2 Dose Profiles and PDD 47
III.6.1.5.3 Isodose curves 48
III.6.1.5.4 Comments 48
III.6.1.5.5 Analysis 48
o III.6.2 18 MV 49
III.6.2.1 Phantom 1: Homogenous 49
III.6.2.1.1 Dose values 49
III.6.2.1.2 Dose Profiles and PDD 50
III.6.2.1.3 Isodose curves 50
III.6.2.1.4 Comments 51
III.6.2.1.5 Analysis 51
III.6.2.2 Phantom 2: Containing a layer of heterogeneity (HU=-1000) 51
III.6.2.2.1 Dose values 51
III.6.2.2.2 Dose Profiles and PDD 52
III.6.2.2.3 Isodose curves 52
III.6.2.2.4 Comments 53
III.6.2.2.5 Analysis 53
III.6.2.3 Phantom 3: Containing a layer of heterogeneity (HU=-800) 53
III.6.2.3.1 Dose values 53
III.6.2.3.2 Dose Profiles and PDD 54
III.6.2.3.3 Isodose curves 54
III.6.2.3.4 Comments 55
III.6.2.3.5 Analysis 55
III.62.4 Phantom 4: Containing 2 layers of heterogeneity (HU=-1000) 55
III.6.2.4.1 Dose values 56
III.6.2.4.2 Dose Profiles and PDD 56
III.6.2.4.3 Isodose curves 57
III.6.2.4.4 Comments 57
III.6.2.4.5 Analysis 57
III.6.1.5 Phantom 5: Containing 2 layers of heterogeneity (HU=-800) 58
III.6.2.5.1 Dose values 58
III.6.2.5.2 Dose Profiles and PDD 59
III.6.2.5.3 Isodose curves 59
III.6.2.5.4 Comments 60
III.6.2.5.5 Analysis 60
III.7 Discussion of Results 60
III.8 Conclusion 62
Conclusion 63
Bibliography
AnnexCôte titre : MAPH/0215 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité MAPH/0215 MAPH/0215 Livre Bibliothéque des sciences Anglais Disponible
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