World Congress on Medical Physics and Biomedical Engineering September 7 - 12, 2009 Munich, Germany (eBook)

2501.pdf 1
IFMBE 25/I 1
Preface 5
Table of Contents 8
Development of New Radioactive Seeds Tm-170 for Brachytherapy 29
Implications of Histogram Analysis in Radiation Therapy (HART) Software 33
Evaluation of dosimetric characteristics of a grid block fabricated for Mega-voltage grid theraphy purposes 37
Monte Carlo Investigation of Stereotactic Radiosurgery of Spinal Metastases 41
Impact of Kilo-Voltage Cone Beam Computed Tomography on Image-Guided Radiotherapy of Prostate Cancer 45
Cell Deformation by Dielectrophoretic Fields 49
Particle-beam radiation therapy for the tumor of pharyngeal region 53
A New Synchrotron Radiotherapy Technique with Future Clinical Potential: Minibeams Radiation Therapy 57
Analysis of combined HDR Brachytherapy and external beam radiotherapy in the treatment of carcinoma of cervix. 61
Motion detection system with three USB cameras and an active search algorithm for stereotactic radiosurgery 65
An Investigation of the concomitant doses from Cone Beam CT and CT simulation in Radiotherapy 69
Treatment Planning for Volumetric Modulated Arc Therapy (VMAT) 73
The 21st Birthday Party for intensity-modulated radiation therapy (IMRT) 21 years from 1988-2009
A Dedicated Irradiation Facility for Radiotherapy Dosimetry 81
A beam model applicable to small fields: development and validation 84
MR based treatment workflow for external radiotherapy of prostate cancer 88
Computational Simulation of Tumour Hypoxia as applied to Radiation Therapy Applications 92
Investigation of the Recovery Behaviour as Depending on Parotid Gland Irradiation Dose 95
Quality Assurance Program for Radiosurgery at Clinicas Hospital: Results of Implementation 98
Application of MRI normoxic polymer gel dosimetry for the evaluation of radiation dose distribution in external beam radiotherapy 100
On the Risks of a Constant RBE for Proton Treatment Planning 104
Comparison of Dose Distribution in Brain Tumor Conformal Radiotherapy Using CT and CBCT 108
Effect of the Same Plan on Doses to Patients during Radiotherapy with Nasopharyngeal Carinoma 109
Optimization of Dose Distribution with Multi-leaf Collimator Using Field-in-Field Technique for Radiotherapy of Hodgkin’s Lymphoma 110
On the performance of monitor chambers to measure the output of medical linear accelerators for high-precision dosimetric investigations 113
Calorimetric Determination of Absorbed Dose to Water for an 192Ir HDR Brachytherapy Source in Near-Field Geometry 117
The first national IMRT dosimetry intercomparison in Switzerland using a thorax phantom with inhomogeneities 121
Calibration of 125I brachytherapy sources in terms of reference air kerma rate 125
A Mathematical Aid Decision Tool for RT Planning 129
Accuracy of GafChromic EBT Film as Dose Meter in Radiotherapy QA 133
Low-Dose Cone-Beam CT Imaging for Radiotherapy 137
The realization and application on image pasting for Cone-beam Computed Tomography 141
In vivo dosimetry using MOSFET and TLD for Tomotherapy 142
Dose audit using a glass dosimeter for Radiation Therapy Facilities in East-Asian Countries 145
Editing range compensator for sparing normal tissue in treatment planning of carbon-ion radiotherapy 147
A new device for the measurement of the absorbed dose to water for low energy x-ray sources used in brachytherapy 150
Comparison of PET Concepts for Dose Delivery Monitoring of Particle Therapy 154
Image-guided stereotactic body radiation therapy using a low-Z target imaging beam line and a high dose rate unflattened beam 158
Conformity of brain lesions treated with radiosurgery and fractionated stereotactic radiotherapy 161
Comparing pencil-beam generated and Monte Carlo generated dose-to-water and dose-to-tissue distributions for proton therapy patients 165
In Vivo Evaluation of Photofrin II Radiosentisitivity for the Treatment of Adenocarcinoma Tumors in Balb-C Mice using Brachytherapy 169
Extend Distance Treatment for Stereotactic Body Radiation Therapy of Lung Cancer 172
Monte Carlo dosimetry with PENELOPE code of the VariSource VS2000 192Ir high dose rate brachytherapy source 176
Energy Dependence Investigations of GafChromic EBT Films for Pretreatment Dosimetric Verification of IMRT Plans 180
Design and fabrication of the control part of a prototype multileaf collimator system 183
Quantitative Evaluation of Gating Radiotherapy System and Dynamic Tumor Tracking Radiotherapy System Developed at KIRAMS 186
Dosimetrical Aspect of CT Simulation Role in Radiation Therapy Planning 190
Implantable in vivo Dosimetric Probe Based on GaN Radioluminescence 195
Pre-clinical experiments in the deep-seated tumor heavy-ion therapy terminal at HIRFL-CSR 200
Second source model of collimator scatter and spectra of proton beams 203
Determination of nuclear cross sections of proton beams by the collective model and extended nuclear-shell theory 207
4D Monte Carlo Dose Calculations for Particle Therapy Combined with the Spring Network Model of Lung Motion 211
Prognostic Analysis of Three-Dimensional Conformal Radiotherapy of Regional Lymph Node Metastasis of the Surgical Esophageal Carcinoma Patients After Resection 215
Quality control of brachytherapy source using MCNP5 calculation and radiochromic films measurement 216
A Monte Carlo Study of the Particle Angular Distributions from the Electron Applicators of a Medical Linear Accelerator 220
Four-Dimensional Computerized Tomography (4D-CT) Reconstruction Without an External Breath Surrogate 224
Usefulness of GafChromic EBT film for dosimetry beyond 8.0 Gy 228
Influence of the CT slice thickness on the dose calculation for stereotactic treatment planing 232
"F-MRI: a method to assess therapy-induced cognitive impairment?” 235
Revaluation for problem of clinical particle therapy in cell biological effects of proton, carbon-ion and X-ray at Hyogo Ion Beam Medical Center 238
Fast and Accurate Proton Computed Tomography Image Reconstruction for Applications in Proton Therapy 241
Patient setup using a 3D laser surface scanning system 245
Therapy Optimization Based on Non-linear Uptake of PET Tracers versus "Linear Dose Painting" 249
Ant colony algorithm implementation in commissioning radiosurgery photon beams for Monte Carlo treatment planning 253
Respiratory Training and Guiding System using Head Mount Display Device to improve the regularity of breathing 257
The use of aSi EPID for in vivo dosimetry in photon beams: clinical experience 260
Response of Lithium Formate EPR Dosimeters at Photon Energies Relevant to Brachytherapy 264
Development of IMRT Treatment Planning Syatem 268
An Investigation on the Internal Wedge Factor Estimation for an Elekta Linac using Monte Carlo Simulation 272
Three Dimensional Gamma-Index Analysis and Considerations of the Reference Level Definition for Dosimetric IMRT Plan Verification with 2D Ionisation Chamber Arrays 276
Parameterisation of Small Photon Fields in Off-Axis Regions for the SIEME..S 160 MLC 278
Suitability of the MVCT of TomoTherapy and Siemens Oncor for Treatment Planning 280
Measurement of Absorbed Dose to Water of a Gamma Knife Type C 284
On line neutron dose evaluation in patients under radiotherapy 287
Lorentz function convolution kernel of narrow photon beam profiles in homogeneous and inhomogeneous media 290
FIRST ASSESSMENT OF A NOVEL IGRT DEVICE FOR STEREOTACTIC BODY RADIATION THERAPY 294
Heavy Ion Radiotherapy for Shallow-Seated Tumors at IMP 298
Density response characteristics of GafChromic EBT dosimetry film using ultraviolet light exposure 301
Fiducial-free spinal radiosurgery: Patient motion and targeting accuracy in 227 single fraction treatments with the Cyberknife 305
Electron arc planning on the commercial radiation treatment planning system 309
Influence of Modulation Restriction in Inverse Optimization with HIPO of Prostate Implants on Plan Quality: Analysis using Dosimetric and Radiobiological Indices 311
Improving the performance of direct Monte-Carlo optimization for large tumor 315
Finite Element-Based Biomechanical Modeling of the Bladder for Image Guided Radiotherapy 319
Verification of the accuracy in patient alignment using a laser-optical 3D-surface imaging system 323
{/it LDR and HDR intracavitory brachytherapy of cancer cervix uterus- rectal doses and ERD comparison} 327
Evaluation on Lung Cancer Patients’ Four-dimensional Treatment Plans Utilizing Biologically Effective Uniform Dose 331
Brachytherapy seed localization via iterative forward projection matching (IFPM) algorithm using intraoperative cone-beam-CT sinogram projections 335
Using Correlated Sampson to Accelerate CT-Based Monte Carlo Dose Calculations for Brachytherapy Treatment Planning 339
Investigation of a stereoscopic camera system for gated radiotherapy 343
Extracting breathing traces from any cone-beam image-set 346
A linear implementation of dose-volume constraints for multi-criteria optimization 350
Monte Carlo Dose Calculation for Radiotherapy Treatment Planning: Dose to Water or Dose to Medium? 354
Comparison of Contra lateral Breast & Chest wall doses during Radiotherapy of Ca-Breast (with mastectomy) using Co-60 machine and 6 MV LINAC.
The integration of the dose-guided radiation therapy process on a clinical workstation 362
First experience with patient oriented Rapid Arc treatment plan verification 366
EGSnrc Monte Carlo-aided dosimetric studies of the 192Ir microSelectron v2 HDR brachytherapy source 369
Motion management in scanned particle therapy: beam gating & tracking
Quality assurance and application of a 4D in vivo dosimetry system using a deformable lung phantom 377
Dosimetric advantages of Stereotactic IMRT of brain lesions delivered with a micro-multileaf collimator 380
In vivo measurements of the dose delivered by kilovoltage cone-beam CT during prostate radiation therapy 384
Initial application of a geometric QA tool for integrated MV and kV imaging systems on Trilogy, Synergy, and Vero 386
A New Electron IMRT Technique for Breast Cancer: Comparison to Photon IMRT and Conventional Irradiation Based on Static and Dynamic Dose Measurements 390
TLD Correction Factor for Dose Delivery Verification on Gamma Radiation Cobalt-60 on Clinical Treatment 394
Development of Treatment Planning System in Peking University 398
Direct Monte-Carlo optimization (DMCO) with biological, physical and hybrid objective functions 401
4D calculation and biological dosimetry of the RBE-weighted dose for scanned carbon ion beam therapy 405
Radiobiological analysis of planned and delivered IMRT dose distributions 409
Impact of Truncation Correction in Flat-Detector Computed Tomography on Carbon Ion Radiotherapy Treatment Planning 413
Reconstruction of portal images from IMRT fields for patient setup verification 417
Comparison of IMRT and photon-electron-mix technique in radiotherapy treatment planning of ablatio mammae 420
Relative peripheral dose at IMRT– A comparison between Siemens Oncor and Artisté 424
EPID calibration method for transit in-vivo dosimetry 427
Guided radiotherapy by an in-vivo dosimetry for lung tumors 431
Implementation of a complete IMRT QA program and clinical experience with the DAVID chamber for in-vivo verification of IMRT deliveries 435
Enhancing the error detection capability of the DAVID system with the use of adaptive warning and alarm levels 438
PDD AND DOSE PROFILE FOR NARROW BEAMS OF A COBALT – 60 THERAPY UNIT TO BE USED IN STEREOTACTIC RADIOSURGERY 441
Technical accuracy of a beam travking system for scanned particle therapy of intra- fractionally moving targets 445
A Joint Research Project to improve the accuracy in dosimetry of brachytherapy treatments in the framework of the European Metrology Research Programme. 449
Proposals for a ICRU-50/62 -Consistent Dose Prescription Suited for IMRT Radiation Techniques 453
Fast Dose Calculations in Radiation Therapy with GPUs 457
Robust Radiobiological Optimization for Proton Therapy Treatment Planning 461
Neutron Therapy at the FRMII - Calculation of Dose inside a Voxel Phantom 465
Monte Carlo based independent monitor unit calculation in IMRT 469
Suggestion for an extended quality assurance in 4D CT and its function in gated radiotherapy using a motion phantom 473
On-line compensation of dose changes introduced by tumor motion during scanned particle therapy 477
Feasibility Study of the Use of Artificial Neural Networks in Predicting Acute Rectal and Urinary Bladder Toxicity Following Prostate Cancer Radiotherapy 481
Imaging QA Program for Image Guided RadioTherapy (IGRT) 485
Dose QA Using EPID and a Dose Prediction Algorithm Independent of the Planning System 488
Investigation of the Dose Distribution Quality Achievable with Arc-Modulated Cone Beam Therapy 491
Investigating the Reproducibility of Motion for Lung Tumours Treated with Stereotactic Body Radiotherapy 495
A Feasibility Study on Multi Prompt-Gamma-Ray Telescope System for Boron Neutron Capture Therapy 498
Measurement of Inter-fraction Changes in Bladder Volume Using Ultrasound Image Guidance for Gynecological Radiotherapy 502
A comparison of dose and energy-based mapping methods for 4D Monte Carlo dose calculation in deforming anatomy 504
IGRT and its Quality Assurance at the DKFZ 507
Implementing Volumetric Modulated Arc Therapy (VMAT): Initial Dosimetric Results for Retrospective Patient Study 509
Influence of Patient Movement and Anatomy Alteration on the Quality of 3D US-Based Prostate HDR Brachytherapy Treatment 512
Clinical Evaluation of an Intra-Modality 3D Ultrasound IGRT System 516
Quality assurance of a robotic, image guided radiosurgery system 520
Impact of Beam Alignment on Leakage of the Siemens 160 MLC™ 524
Observations of Prostate Intrafractional Motion during External Beam Radiation Therapy 527
Imaging motion with a 4-row CT scanner (GE Light Speed RT) 531
Measurements of the signal-to-noise ratio with ``EPID QC Phantom'' and ``epidSoft 2.0'' from PTW 535
E-IMRT: a web platform for the verification and optimization of radiation treatment plans. 539
Tumor Alignment between 4DCT and 4D Cone Beam CT for Irregular Respiratory Patient – a Phantom Study 543
Analysis of Error Detection in EPID-Based IMRT Pre-Treatment QA 547
Improving the accuracy of entrance dosimetry measurements for dose modeling 551
Evaluation of the Twin Chamber Signal Ratio, a Physical Estimate of the Low- Energy Photon Contribution to Dose within Radiotherapy Fields 555
Uncertainties of RBE in treatment planning for ion beam tumor therapy: Experimental and modeling aspects 558
Efficacy of Cummulative Biological Doses at various points of Lymphatic Trapzoid using microselectron HDR 561
Obtaining information on intra-fraction prostate displacement in radiotherapy determined from pre- and post-treatment kV imaging 563
The Investigation of Dosimetric Reduction on Organs at Risk in Nasopharyngeal Carcinoma for Static IMRT Planning 567
Dose calculations for clinical proton broad beams by GEANT4 568
Use of Nanoparticles in Brachytherapy – An Alternative for Enhancing Doses in Cancer Treatment 572
Improvement in dose homogeneity in a patient with sinonasal cancer using nasal accessory 576
Implementations and first measurements with Delta4 at the TomoTherapy 579
Dedicated treatment planning system for the evaluation of the doses delivered to the whole patient body during radiotherapy 583
Dose verification of critical structures in Gamma Knife Radio surgery of Pituitary Adenoma 587
Beam Angle Optimization in Partical Therapy with OptiC 590
Camera-based independent couch height verification in radiation oncology 594
4D-CT reconstruction based on body volume change 597
Monte-Carlo calculation of beam quality correction factors and comparison with experimental measurements 601
Localization of high dose rate 192Ir source during brachytherapy treatment using silicon detectors 605
Systematic Studies on the Beam Stability and the Transient Effect of a Siemens ONCOR Impression Accelerator 609
The Dosimetric Study of Static MLC Based Electronic Tissue Compensation using In-house Leaf Sequencing Software 613
The Monte Carlo Code MCPTV- Dose Calculation in Radiation Therapy with Carbon Ions 617
Interfractional Variations of Shape and Impact on Dose of Organs at Risk in Head and Neck Cancer Patients during Helical Tomotherapy 619
Experimental determination of the radial dose distribution in high gradient regions from a low dose rate iridium-192 wire sources using EPR imaging 623
Dose Evaluation in Medulloblastoma Cancers 627
Output measurement for small field photon beams in a sandwiched phantom 628
Comparison of Monte Carlo Dose Calculation with Advanced Kernel Methods in External Photon Beam Treatment Planning 632
Verification of head & neck IMRT-plans by Monte Carlo simulation
Optimization of Catheter Position and Dwell Time in Prostate HDR Brachytherapy using HIPO and Linear Programming 640
Real-Time Compensation of Target Motion with a Dynamic Multileaf Collimator 644
An Augmented Reality Application for Patient Positioning and Monitoring in Radiotherapy 648
STATIONARY-GANTRY TOMOSYNTHESIS SYSTEM FOR ON-LINE IMAGE GUIDANCE IN RADIATION THERAPY BASED ON A 52-SOURCE COLD CATHODE X-RAY TUBE 652
Dosimetric Errors of TPS Calculations without Correction for Heterogeneity – A Study Using CIRS Thorax Phantom 656
Adjustable Prescription Dose: A New Strategy to Improve IMRT Treatment Planning 659
Segmented Deformable Registration for Improved Modeling of the Lungs 663
Basic investigation of boron neutron capture therapy (BNCT) using novel boron agents and accelerator based neutron source 666
Robotic Phantom to Simulate Patient Breathing Motion 670
Improved simulation of small electron fields for external beam radiation therapy 673
The feasibility of goggle monitor for respiratory biofeedback of patient to reduce correlation error using real-time tumor tracking system. 677
Improved Techniques to Assign Accurate Phase Information Of Respiratory Signals for 4D CT Reconstruction 680
Predicting Response in Lung Cancer from FDG-PET Uptake Characteristics 684
Determination of Dose Escalation Region in Malignant Brain tumors for Radiation Treatment Planning Based on Apparent Diffusion Coefficient Map 688
Backscatter Factors for a Clinical 6 MeV Electron Beam 692
Fast optimization of non-coplanar beam angle sets for intensity modulated radiation therapy 695
Can a Commercially Available TPS Be Used to Develop VMAT Solutions? 699
Considering marker visibility during leaf sequencing for segmental intensity modulatedradiation therapy 702
Tomotherapy Quality Assurance (TQA): A Fast and Comprehensive Software Tool 706
Monte Carlo Based Suggestion of the Best Choice for Material of a Multileaf Collimator (MLC) and the Required Thickness 707
BANG-3® polymer gel dosimetry in Cyberknife 711
Production of Ac-225 with Cyclotrons for Generating Bi-213 for Targeted Alpha Therapy 714
Development of customized program to generate 2D dose map with high resolution for 120 Leaf MLC 716
Development of an image-guided radiation therapy device for precise irradiation of small animal tumors 720
A finger leaf design for dual layer MLCs 724
Head scatter factor calculation considering characteristics of scattered photon 728
Monte Carlo Dose Calculation using GPU-Based parallel processing 732
Different simple Models for Optimizing Convergent Beam Multiple Field Irradiation for Stereotactic Treatment Techniques 736
Sparing of critical organs in radiotherapy of mediastinal lymphoma 739
Evaluation of dosimetric accuracies of gated step-and-shoot IMRT using Dynalog data 742
Linear Accelerator Photon Beam Interaction with the Virtual Physiological Human 745
Investigation into the Pinnacle SmartArc Module for VMAT Planning 749
Why still Multibeam Tomotherapy? 753
Comparison of beam data using diode and ion chamber in small field of CyberKnife 756
Characterization and Monte Carlo Simulation of Low- and High-Perturbation in-vivo Diode Dosimeters for 9 MV X-Rays 759
Development of an Optimized Pencil Beam Algorithm for Radiation Therapy 763
How Much Target Average Positions in Thorax Region Change Daily? 767
Accuracy evaluation of using MV EPID and / or integrated kV imaging system to locate 3D positions of internal fiducial markers using a Calypso system 768
In-hospital neutron autoradiography for Boron Neutron Capture Therapy applications 772
Introduction of a Breath Gating System in a Clinical Environment A practical description of our experiences 776
Computerized Treatment Planning Directives for Adaptive Radiation TherapyManagement 778
Fast range compensation inside the beam line for beam tracking in particle therapy 782
Optimal delivery of DMLC Arc Therapy 786
Small Photon Field Dosimetry using Gel 790
A Method for Evaluation of Target Point Correction in Fractionated Radiotherapy 793
Performance of patient specific margins derived using a Bayesian statistical method 797
Combination of External/Image-Based Detection of Respiratory Induced Motion and Adaption with a Gating Mechanism 800
How Regular Motion Pattern and Patient Individual Respiration Curves Affect Contour and Volume of Geometric Structures in a 4D CT 804
Comparison of Daily Online Ultrasound and MV-CBCT Localization Data for Post Prostatectomy Cancer Patients and Implications for PTV Margin Expansion 808
Comparison of Localization Techniques for Prostate Radiotherapy 812
Optimized Spinal Cord Contour Propagation for Fractionated Radiation Therapy Planning 816
A comprehensive quality assurance Program for radiotherapy using TLD : The Algerian Experience 820
Optimization of an external beam radiotherapy treatment using GAMOS/Geant4 822
Characterization of a PMMA embedded extrapolation chamber in${^ 60}$Co gamma beams 830
Comparison of different evaluation programs for the verification of patient irradiations with tomotherapy 833
Monte Carlo simulation of novel procedures for highly conformal percutaneous radiation with keV-photons for tumor treatment in skin proximity 837
Monte Carlo benchmarking of a CCC-based treatment planning system in case of irregularly shaped fields 841
Radioiodine Biokinetics and Dosimetry in Patients with Differentiated Thyroid Carcinoma and Renal Insufficiency 845
Developments in MRI-based radiation treatment planning 849
Electron beam dosimetry in heterogeneous phantoms using MAGIC normoxic polymer gel 853
Dosimetric Testing of a New Release of 3D Treatment Planning System with the IAEA-TECDOC-1540 857
Absorbed Dose Reference for LDR Brachytherapy the LNE-LNHB Approach 861
Image enhancement techniques allowing observation of intra–fractional motion in IMRT treatment for prostate carcinoma 868
DIRART – A Software Suite for Deformable Image Registration and Adaptive Radiotherapy Research 872
An Alternative Approach to Inverse Planning Optimization: Applying the Projection Theorem to Concave and Convex PTVs for VMAT Delivery 876
3 Years of Data Collection and Analysis of Film Flatness and Symmetry Using Vidar/RIT Software from Different Centers Nation Wide 880
Small Field MV Photon Dosimetry 882
Virtual Spirometry: Utilizing an abdominal bellows system for quantitatively gating in 4D CT acquisition 883
In vivo dosimetry for patient specific quality assurance in aperture based IMRT. 887
Validation of a Biplanar Diode Array Dosimeter for Helical Tomotherapy Delivery QA 891
Comparison between Clinically Used Irregular Fields Shaped by Cerrobend Blocks and by Multileaf Collimator Using a Clarkson Sector Integration Computer Program 895
Evaluation of 3-D Treatment Plans Using Physical and Motorised Enhanced Dynamic Wedges 899
Integral Dose in Three-Dimensional Conformal Radiotherapy, Intensity-Modulated Radiotherapy, and Helical Tomotherapy 901
Extension of Electron Monte Carlo Dose Calculation in Eclipse to Siemens Linear Accelerators 903
Current Status of the HIBMC, Providing Particle Beam Radiation Therapy for More Than 2,600 Patients, and the Prospects of Laser-Driven Proton Radiotherapy 906
Monte Carlo Study of Depth Dose Calculation for Low Energy Clinical Electron Beams 911
Setup Variations and Tumor Margins Using the ExacTrac X-Ray 6D in Prostate Radiotherapy 915
Useful Techniques for Tomotherapy Treatment Planning 918
Optimization of Radial Dose Function for Varian Ir-192 Brachytherapy Source Model VS2000 921
On the Use of a Light Ion Kernel for Biologically Optimized Adaptive Inverse Treatment Planning 925
Range, Setup and Dose Calculation Errors in IMPT and Their Interrelation 927
Motion-Weighted Dose-Volume Histograms – A Novel Approach to 4D Treatment Planning 932
Assessing Correlations between the Spatial Distribution of Dose to the RectalWall and Late Rectal Toxicity after Prostate Radiotherapy 936
Design and Physical Properties of an IrisTM Collimator for Robotic Radiosurgery 940
Evaluation of the Clinical Utility of an IrisTM Collimator Combined with a Sequential Optimization Algorithm for Robotic Radiosurgery 944
A Quality Assurance Tool Based on kV- and MV-Image Analysis for a Linear Accelerator Including an Integrated IGRT System 948
MRI and CT Slice Thickness Evaluation by Computerized Dedicated Procedures 952
Re-planning for Compensator-Based IMRT with Original Compensators 956
Single-Pulse-Resolved Dosimetry with Miniaturized Detectors in Teletherapy 960
The evaluation of therapeutic effect of trastuzumab labeled 177lu in breast cancer cell line 964
SURE-LET and BLS-GSM wavelet-based denoising algorithms versus linear Local Wiener Estimator in Radiotherapy portal image denoising. 966
Learning from Incidents in Radiation Treatment 969
Combined Dose Distribution for the External Beam Whole Breast Irradiation and MammoSite Breast Brachytherapy: Monte Carlo Investigation 973
In-vivo Proton Beam Shaping Using Static Magnetic Field for Cancer Therapy 977
A Preliminary Study on Development of QA System for Stereotactic Head Frame and Its Reliability and Accuracy 980
Performance and Clinical Trial in vivo of a Scintillation Dosimeter in Brachytherapy 983
Algorithm Development of Designing a Patient-Specific Block for MC-Based Dose Calculation in Electron Beam Therapy for Breast Cancer 987
An Air Core Scintillation Dosimeter for Megavoltage External Beam Dosimetry: Experimental Results 990
An Air Core Cerenkov Free Scintillation Dosimeter: Monte Carlo Simulation for External Beam Radiation Therapy 994
Simulation Study on Coverage of Tumor Motion Accordance with the Scanning Time in Slow-Scan CT 998
Calibration of Therapy-level Dosimeters in Japan by Association for Nuclear Technology in Medicine (ANTM) 1001
Out-of-Treatment Room Set-Up for Patient Positioning in External Beam Radiotherapy 1005
Application of 2 Step IMRT to Spinal Tumors: A Preliminary Retrospective Planning Study Comparison with Classical IMRT 1009
Comparison of Two different Methods for describing the geometry of a Voxelized Anthropomorphic Phantom in Radiotherapy Treatment Plans 1013
Measuring system for testing the mechanical isocenter accuracy of medical linear accelerators 1017
Validation of the SUV values calculation in the iPlan 4.0 Treatment Planning System (BrainLAB) 1021
New system for TBI with translation method at the Institute of Oncology Ljubljana 1024
Estimation of Free Electron Fraction Value p for a Parallel-Plate Ionization Chamber in High Dose Per Pulse IORT Electron Beams 1026
VMC++: Validation of the Monte Carlo code for low energies 1029
Dose Distribution Depending on the Number of Control Points in Forward-Planned Intensity-Modulated Radiation Therapy for Breast Cancer 1032
Method of Combined Proton-Photon Radiation Therapy of Prostate Cancer 1036
Conversion of Greyscale Intensity Values from CBCT Images Acquired on Elekta XVI to HU for Treatment Planning Dose Calculations 1037
Dosimetric Comparison between Helical Tomotherapy and Biologically Based IMRT Treatment Planning System for Selected Cases 1040
Study of a CVD diamond detector for absorbed dose measurement in photon beams with small field sizes 1044
Analysis of Dose Shifts induced by Organ Movements during Treatment with TomoTherapy using a Motion Phantom and GafChromic EBT Films 1048
Tolerance of the Spinal Cord to Hypofractionated Radiotherapy Based on a Generalized Biological Effective Dose (gBED) Model 1052
Reproducibility of neutron activated Sm-153 in tablets intended for human volunteer studies 1055
Sequential Optimization Scripts to Facilitate Treatment Planning for Robotic Radiosurgery Clinical Studies for Prostate and Lung Cancers 1059
Comparative study between IBT or EBRT boost doses at organs at risk in Cervical Cancer treatment 1063
Beam Characterization for Step-and-Shoot IMRT 1066
Assessment of Image Guidance Using kV Orthogonal Images and Cone Beam CT for Liver Stereotactic Radiosurgery 1070
Dosimetric Effects of Gantry Angular Acceleration and Deceleration in Volumetric Modulated Radiation Therapy 1074
Evaluation of Multileaf Collimator Effect on the Build-Up Dose Region Using Different Ionization Chambers 1079
Standard Absorbed Dose to Water for HDR Brachytherapy Sources with Fricke Dosimetry 1083
Monoscopic Imaging for Intra-fraction Motion Management 1085
Clinac Performance: Watching the First Seconds 1088
Accelerated Dose Calculation Engine for Interstitial Brachytherapy 1091
Updated Beam Parameters for Monte Carlo Simulation of Five Varian Megavoltage Photon Beams (4, 6, 10, 15 and 18 MV) 1095
Single and Multibeam Dose Distribution for Treatment Planning of Cancer 1099
Quantitative Analyses of Normal Tissue Effects in the Clinic (QUANTEC): Clinical Use 1102
The Lessons of QUANTEC (Quantitative Analysis of Normal Tissue Effects in the Clinic): Recommendations for Reporting and Gathering Data on Dose-Volume Dependencies of Treatment Outcome 1103
Author Index 1104