Qalitätssicherung an Multileafkollimatoren. Dr. Lutz Müller Würzburg jan 2004
|
|
- Sharon Tucker
- 6 years ago
- Views:
Transcription
1 Qalitätssicherung an Multileafkollimatoren Dr. Lutz Müller Würzburg jan 2004
2 IMRT Verification - present Target Volume Constraints Inverse Planning Algorithm Fluence Map Leaf Sequencer Leaf & Gantry sequence Desired 3-d dose distribution 3-d Dose Delivered 3-d dose distribution 2
3 Workflow of Film Verification CT scan of phantom Irradiate patient s plan to phantom Apply patient s plan to phantom Calculate dose distribution in Phantom Process film read in 3D data OmniPro - IMRT COMPARE AND EVALUATE DATA: isodoses, + - * /,? Scan Film calibrate register reconstruct 3d 3
4 Equipment: Body Phantom Film application fields: 1. Universal body 2. Head & Neck 3. Stereotactic Material: water-equivalent RW3 (polystyrene) Dimensions: U: 36 (W) x 18 (H) x 33 (D) H&N: 18 x 18 x 18 cm 4
5 Royal Marsden (UK) Testing Case: Prostate & Pelvic Nodes in Alderson Phantom DICOM imported plan isodose comparison calibrated film gamma evaluation 5
6 Routine IMRT Verification - 3D/ 2 ½D Dosimetry checks the quality of treatment planning process and of the delivery process - In routine applications, only the delivery needs to be verified - Check it: measure fluence/sequence offline or online - Trust it: accurate, frequent QA, specially of MLC, is a MUST 6
7 IMRT Verification 2D Fluence Delivered fluence Leaf Sequence Target Volume Constraints Inverse Planning Algorithm Fluence Map Leaf Sequencer Leaf & Gantry sequence Desired 3-d dose distribution 3-d Dose Delivered 3-d dose distribution 7
8 Usage of a-si EPID (Elekta i-view) OmniPro-I mrt connects to ELEKTA s database recalibrates images (linear response) 8
9 Step-and-shoot delivery w/ EPID individual segments (integration w/o deadtime) composed image 9
10 EPID vs. Film 50% isodoses EPID... Film integrated EPID (normalized) calibrated Film 10
11 EPID vs. Plan (Helax TMS) integrated EPID (normalized) calculated plan data 11
12 I mrt QA Device Imaging device Positioning tripod Gantry adapter frame scintillators 12
13 I mrt QA: Operating Principle Scintillator Incident Radiation Reflected Light 12-bit CCD Camera Mirror 12 Bit parallel Data out 13
14 Complex IMRT Field BIS Measurement Eclipse Calculation x profile y profile I mrt QA Eclipse 14
15 MLC QA precise measurement of all leaf positions is needed! 1 cm Gap 0.5mm means 5% error 15
16 MLC QA with Film Abutting Fields 16
17 Positioning precision of?-mlc (3D-LINE) Avg. Pos = 24.6 mm Std. Dev. = 0.36 mm 17
18 Positioning precision of?-mlc (3D-LINE) pos. deviation from average # of leaves n = discard [cm] 18
19 Hysteresis in Leaf Positioning 19
20 Hysteresis in Leaf Positioning Leaf Positioning Hysteresis 16 # of leaves < 0.1 mm 0.1< dx < 0.2 mm >0.2 mm avg(close) - avg(open) [cm] 20
21 MLC QA - Gravity 90 Gantry Orientation vs. 270 Gantry Orientation 21
22 MLC QA Picket Fence MLC pairs form a narow slot moving across the field, stopping and reaccelerationg at predefined positions 22
23 MLC QA Leaf Speed Test Leaf pairs form gaps moving with different speed Delivery with beam interrupts 23
24 MLC QA Picket Fence Regular Pattern Error introduced 1.0 mm 0.9 mm 0.8 mm 0.7 mm 0.6 mm 0.5 mm 0.4 mm 0.3 mm 0.2 mm 0.1 mm 24
25 MLC QA Picket Fence 1.0 mm 0.9 mm 0.8 mm 0.7 mm 0.6 mm 0.5 mm 0.4 mm 0.3 mm 0.2 mm 0.1 mm 1.0 mm 0.5 mm 25
26 Leaf Position Readout Precision measured displacement [cm] y = x R 2 = programmed error [cm] 26
27 Leaf Timing Diagram leaf position (cm) left leaf right leaf left leaf (error) right leaf (error) frame number 27
28
29 I mrt - QA Key Features - Fast and simple set-up: less than 5 minutes. - Positioning on table or in gantry accessory holder - Acquisition of individual segments or entire IMRT field - Minimum acquisition time: 120 msec per 2D image - Intensity resolution: 12 bit - Spatial resolution 0.4 x 0.4 mm - Field size up to 400 x 400 mm - Acquisition and analysis integrated in OmniPro-IMRT software platform 29
30 Verification of intensity modulated pattern calculated plan Individual segments Delivery error! I mrt-qa After error analysis & correction 30
31 Use of 2-d Dose Distribution for Verification (Measurements at IGR Paris) 1 cm solid water on BIS, Cu plate corresponds to 2 cm H 2 O CadPlan calculates in 3 cm depth 3 cm 5 cm 31
32 Dynamic Wedge Dynamic Wedge 1.2 Dose/rel. Signal [%] Position [cm] Eclipse BIS 32
33 Verification of IMRT Quantity 3-D Dose Distribution 2-D Dose/Fluence Leaf Positions MLC QA Calculation Apply Plan to Phantom. Calculate 3-D Dose Distribution Calculate Fluence Pattern or 2-D Dose Distribution Leaf Positions from TPS Measurement Put Films in the Phantom. Process, Scan, Calibrate Films. Compose 3-D Dose Distribution BIS Integrated Fluence Pattern Leaf Positions from single BIS Images MU/Dose Check Penumbra measurement Dose in a reference Point Needed for TPS Set-up Ion Chamber in Phantom Small Ion Chamber or Diode in 3-D-Phantom 33
34 IMRT dosimetry applications - Verification of the planned versus delivered dose - Verification of the IMRT delivery prior to a treatment - MLC QA - Monitor Unit calculation - Penumbra measurements 34
35 Startup behaviour Startup Elekta 16MV Startup Behaviour Dose Rate [arb. units] Time [ms] 35
36 Dose Comparison Methods Profiles Isodoses Difference Gamma 36
37 Gamma evaluation (3mm/3%) 37
38 BIS2G attached to the gantry The Gantry is turned around 90 degrees. BIS-System already assembled into the adapter. The accelerator is turned around 180 degrees. 38
39 BIS vs. Cadplan 39
40 Fluence reconstruction more complex n m?, y? ( x, y) y' ) dx' dy' x? Open field w/o penumbra?? S( x? x', y? y' ) T ( x? x', y? Double-Gaussian Transmission Kernel (from penumbra) L.Ma, P.Geis, A.L.Boyer, Med Phys 24(8), 1997 through MLC 1 or 0 40
41 I( x 0 Fit of penumbra region Double-Gaussian Kernel:, y 0 ) 2 2 2?? ( x? x0)? ( y? y0)? ( x? x0)? ( y? ( x, y)? exp??? exp 2?? 1? 2?? I0 2 x, y y 0 ) 2??? rel. fluence square field 6cm position [cm] BIS kernel0.6-03/5 Fit to Penumbra region (square field):? 1 =0.6mm? 2 =3 mm????? 41
42 Double-Gaussian Kernel BIS measured Cadplan / double gaussian kernel 42
43 Gamma Index Cadplan raw fluence Double Gaussian Kernel?x = 3mm,?D = 3%
44 MLC QA with BIS 2G BIS 2G is an ideal tool for accurate and fast MLC QA: 1. High spatial resolution (0.4x0.4mm), 2. High acquisition speed (120ms/frame) and 3. Gantry mount MLC QA techniques: leaf positioning accuracy and reproducability acceleration and deceleration of leafs gravity effect leaf transmission (leakage) visualization on-line MLC movement 44
45 IMRT dosimetry applications - Verification of the planned versus delivered dose - Verification of the IMRT delivery prior to a treatment - MLC QA - Monitor Unit calculation - Penumbra measurements 45
Advanced Radiotherapy
Advanced Radiotherapy IBA Concept for IMRT Verification Dr. Lutz Müller 1 IMRT Verification BIS BIS ADAS Fluence Model Delivered fluence Target Volume Constraints Inverse Backprojection Fluence Map Leaf
More informationRaising the Bar in IMRT QA
MapCHECK 2TM Raising the Bar in IMRT QA The leader in quick and precise measurement of modulated radiotherapy beams Benefits Proven solution for film-less rotational delivery and IMRT QA - More than 1500
More informationQuick Reference Datasheet For All RIT113 Packages
Quick Reference Datasheet For All RIT113 Packages For Rotational Therapies, IMRT & TG142 Highlights and selected product information only. A complete TG142 brochure is available. For more information on
More informationFacility Questionnaire PART I (General Information for 3DCRT and IMRT)
Facility Questionnaire PART I (General Information for 3DCRT and IMRT) The following items are required before you can enter cases on any RTOG protocol that requires data submission to the Image-Guided
More informationIMRT and VMAT Patient Specific QA Using 2D and 3D Detector Arrays
IMRT and VMAT Patient Specific QA Using 2D and 3D Detector Arrays Sotiri Stathakis Outline Why IMRT/VMAT QA AAPM TG218 UPDATE Tolerance Limits and Methodologies for IMRT Verification QA Common sources
More informationAcknowledgments. Ping Xia, Ph.D., UCSF. Pam Akazawa, CMD, UCSF. Cynthia Chuang, Ph.D., UCSF
Page 1 Quality Assurance of IMRT Delivery Systems - Siemens Lynn J. Verhey, Ph.D. Professor and Vice-Chair UCSF Dept. of Radiation Oncology AAPM 22 Annual Meeting, Montreal Acknowledgments Ping Xia, Ph.D.,
More informationVolumetric Modulated Arc Therapy - Clinical Implementation. Outline. Acknowledgement. History of VMAT. IMAT Basics of IMAT
Volumetric Modulated Arc Therapy - Clinical Implementation Daliang Cao, PhD, DABR Swedish Cancer Institute, Seattle, WA Acknowledgement David M. Shepard, Ph.D. Muhammad K. N. Afghan, Ph.D. Fan Chen, Ph.D.
More information8/2/2017. PerFRACTION from Sun Nuclear Automated Transit Dosimetry for In-Vivo QA
PerFRACTION from Sun Nuclear Automated Transit Dosimetry for In-Vivo QA Jennifer R. Clark, M.S., DABR Conflict of Interest Statement: I am an employee of Sun Nuclear Corporation Outline: Platform overview
More informationDynalog data tool for IMRT plan verification
Dynalog data tool for IMRT plan verification Poster No.: R-0051 Congress: 2014 CSM Type: Scientific Exhibit Authors: V. Sashin; FOOTSCRAY/AU Keywords: Computer applications, Radiation physics, Experimental,
More informationTHE WIRELESS PHANTOM PERFORM ACCURATE PATIENT QA IN LESS TIME THAN EVER!
THE WIRELESS PHANTOM PERFORM ACCURATE PATIENT QA IN LESS TIME THAN EVER! Confidence in complex treatments Modern radiation therapy uses complex plans with techniques such as IMRT, VMAT and Tomotherapy.
More informationDisclosure. Outline. Acknowledgments. Ping Xia, Ph.D., Page 1. LINAC and MLC QA for IMRT. Received research support from Siemens Medical Solutions
LINAC and MLC QA for IMRT Ping Xia, Ph.D., Department of Radiation Oncology Disclosure Received research support from Siemens Medical Solutions University of California San Francisco Therapy Series (SAM)
More informationMapCHECK 2 & 3DVH. The Gold Standard for 2D Arrays
MapCHECK 2 & 3DVH The Gold Standard for 2D Arrays Your Most Valuable QA and Dosimetry Tools THE GOLD STANDARD FOR 2D ARRAYS The MapCHECK 2 is the world s most selected independent 2D measurement array.
More informationMapCHECK 2 & 3DVH The Gold Standard for 2D Arrays
MapCHECK 2 & 3DVH The Gold Standard for 2D Arrays Your Most Valuable QA and Dosimetry Tools THE GOLD STANDARD FOR 2D ARRAYS The MapCHECK 2 is the world s most selected independent 2D measurement array.
More informationMachine and Physics Data Guide
WWW..COM Machine and Physics Data Guide STANDARD IMAGING, INC. 3120 Deming Way Middleton, WI 53562-1461 May / 2008 2008 Standard Imaging, Inc. TEL 800.261.4446 TEL 608.831.0025 FAX 608.831.2202 www.standardimaging.com
More informationFAST, precise. qa software
qa software FAST, precise Software for accurate and independent verification of monitor units, dose, and overall validity of standard, IMRT, rotational or brachytherapy plans no film, no phantoms, no linac
More informationTPS COMMISSIONING. Laurence Court University of Texas MD Anderson Cancer Center 4/3/2017 1
TPS COMMISSIONING Laurence Court University of Texas MD Anderson Cancer Center 4/3/2017 1 Conflicts of interest Court receives funding from NIH, CPIRT, Varian and Elekta 4/3/2017 2 Resources your first
More informationIMSURE QA SOFTWARE FAST, PRECISE QA SOFTWARE
QA SOFTWARE FAST, PRECISE Software for accurate and independent verification of monitor units, dose, and overall validity of standard, IMRT, VMAT, SRS and brachytherapy plans no film, no phantoms, no linac
More informationComputational modelling and analysis: IOP Medical Physics Group
Computational modelling and analysis: IOP Medical Physics Group Using Bespoke Matlab Software for the Collection and Processing of Dynalog Files from the Varian Millennium 120 MLC system following delivery
More informationPreface. Med. Phys. 35(9), , Mechanical QA. Radiation Survey Mechanical tests Light radiation Table, Collimator, Gantry Jaws.
AAPM-SAM-2012-Das (1) Beam Data Collection and Commissioning for Linear Accelerators: Technical Considerations and Recommendations Preface Indra J. Das, PhD, FAAPM, FACR, FASTRO Department of Radiation
More informationCode of practice: Create a verification plan for OCTAVIUS Detector 729 in Philips Pinnacle³
Technical Note D655.208.03/00 Code of practice: Create a verification plan for OCTAVIUS Detector 729 in There are basically three ways to carry out verification of IMRT fluences. For all options, it is
More informationInvestigation of tilted dose kernels for portal dose prediction in a-si electronic portal imagers
Investigation of tilted dose kernels for portal dose prediction in a-si electronic portal imagers Krista Chytyk MSc student Supervisor: Dr. Boyd McCurdy Introduction The objective of cancer radiotherapy
More information3DVH : SUN NUCLEAR On The Accuracy Of The corporation Planned Dose Perturbation Algorithm Your Most Valuable QA and Dosimetry Tools *Patent Pending
3DVH : On The Accuracy Of The Planned Dose Perturbation Algorithm SUN NUCLEAR corporation Your Most Valuable QA and Dosimetry Tools *Patent Pending introduction State-of-the-art IMRT QA of static gantry
More informationTomotherapy Physics. Machine Twinning and Quality Assurance. Emilie Soisson, MS
Tomotherapy Physics Machine Twinning and Quality Assurance Emilie Soisson, MS Tomotherapy at UW- Madison Treating for nearly 5 years Up to ~45 patients a day on 2 tomo units Units twinned to facilitate
More informationData. ModuLeaf Mini Multileaf Collimator Precision Beam Shaping for Advanced Radiotherapy
Data ModuLeaf Mini Multileaf Collimator Precision Beam Shaping for Advanced Radiotherapy ModuLeaf Mini Multileaf Collimator Precision Beam Shaping for Advanced Radiotherapy The ModuLeaf Mini Multileaf
More information2D DOSE MEASUREMENT USING A FLAT PANEL EPID
2D DOSE MEASUREMENT USING A FLAT PANEL EPID by Seng Boh Lim B.A.Sc. (Hons.), University of British Columbia, 1994 M.A.Sc., University of British Colombia, 1996 M.Eng, University of British Columbia, 2002
More informationVMAT for dummies: Concepts, Clinical Implementation and Treatment Planning. Rajat Kudchadker, Ph.D. Associate Professor
VMAT for dummies: Concepts, Clinical Implementation and Treatment Planning Rajat Kudchadker, Ph.D Associate Professor 2012 AAPM Spring Clinical Meeting Disclaimer I hold no financial interest nor have
More informationThree-dimensional IMRT verification with a flat-panel EPID
Three-dimensional IMRT verification with a flat-panel EPID S. Steciw Department of Medical Physics, Cross Cancer Institute, 11560 University Avenue, Edmonton, Alberta T6G IZ2, Canada B. Warkentin Department
More information4 Measurement. and Analysis. 4.1 Overview and Underlying Principles 4-1
Measurement and Analysis.1 Overview and Underlying Principles.1.1 Introductory Remarks The physics and setup for film dosimetry have been described in the previous chapters. The measurement setup for IMRT
More informationDelta 4 PT. True Volumetric Pre-treatment Verification. The difference is clear
Delta 4 PT True Volumetric Pre-treatment Verification The difference is clear ScandiDos innovators in advanced volumetric dosimetry solutions ScandiDos ScandiDos is the innovative company that introduced
More informationVerification of dynamic and segmental IMRT delivery by dynamic log file analysis
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, VOLUME 3, NUMBER 2, SPRING 2002 Verification of dynamic and segmental IMRT delivery by dynamic log file analysis Dale W. Litzenberg,* Jean M. Moran, and Benedick
More informationA DOSIMETRIC MODEL FOR SMALL-FIELD ELECTRON RADIATION THERAPY A CREATIVE PROJECT (3 SEMESTER HOURS) SUBMITTED TO THE GRADUATE SCHOOL
A DOSIMETRIC MODEL FOR SMALL-FIELD ELECTRON RADIATION THERAPY A CREATIVE PROJECT (3 SEMESTER HOURS) SUBMITTED TO THE GRADUATE SCHOOL IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE MASTER OF
More informationCalibration and quality assurance for rounded leaf-end MLC systems
Calibration and quality assurance for rounded leaf-end MLC systems Maria N. Graves, a) Antoinette V. Thompson, b) Mary K. Martel, Daniel L. McShan, and Benedick A. Fraass Department of Radiation Oncology,
More informationA Geant4 based treatment plan verification tool: commissioning of the LINAC model and DICOM-RT interface
A Geant4 based treatment plan verification tool: commissioning of the LINAC model and DICOM-RT interface Iwan Cornelius, Chris Poole. Stephen Warwick, Christian Langton Discipline of Physics, Faculty of
More informationFollow this and additional works at:
The University of Toledo The University of Toledo Digital Repository Theses and Dissertations 2010 Implementation of the Dosimetry Check software package in computing 3D patient exit dose through generation
More informationUsing a research real-time control interface to go beyond dynamic MLC tracking
in partnership with Using a research real-time control interface to go beyond dynamic MLC tracking Dr. Simeon Nill Joint Department of Physics at The Institute of Cancer Research and the Royal Marsden
More informationA comparative analysis for verification of IMRT and VMAT treatment plans using a 2-D and 3-D diode array
The University of Toledo The University of Toledo Digital Repository Theses and Dissertations 2014 A comparative analysis for verification of IMRT and VMAT treatment plans using a 2-D and 3-D diode array
More informationAccuracy study. Elekta Synergy S. High precision radiation therapy using Elekta Synergy S. UMC, Utrecht, Netherlands. Institution: Purpose:
S T E R E O T A C T I C R A D I A T I O N T H E R A P Y Elekta Synergy S High precision radiation therapy using Elekta Synergy S Institution: UMC, Utrecht, Netherlands Purpose: The primary application
More informationModulation factors calculated with an EPID-derived MLC fluence model to streamline IMRT/VMAT second checks
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, VOLUME 14, NUMBER 6, 2013 Modulation factors calculated with an EPID-derived MLC fluence model to streamline IMRT/VMAT second checks Stephen Steciw, 1,2a Satyapal
More informationEvaluation of 3D Gamma index calculation implemented in two commercial dosimetry systems
University of Wollongong Research Online Faculty of Engineering and Information Sciences - Papers: Part A Faculty of Engineering and Information Sciences 2015 Evaluation of 3D Gamma index calculation implemented
More informationComparison of Two Phantoms for End-to-End SRS/SBRT Testing. Vikren Sarkar, Ph.D. Associate Professor University of Utah Huntsman Cancer Center
Comparison of Two Phantoms for End-to-End SRS/SBRT Testing Vikren Sarkar, Ph.D. Associate Professor University of Utah Huntsman Cancer Center Disclosure Travel and Speaker Honorarium from Sun Nuclear Corp.
More informationCLINICAL ASPECTS OF COMPACT GANTRY DESIGNS
CLINICAL ASPECTS OF COMPACT GANTRY DESIGNS J. Heese, J. Wulff, A. Winnebeck, A. Huggins, M. Schillo VARIAN PARTICLE THERAPY JUERGEN HEESE New gantry developments Viewpoint from user and vendor perspective
More informationReal-time monitoring of linac performance using RT plans and logfiles
Real-time monitoring of linac performance using RT plans and logfiles NCCAAPM Wisconsin Dells 7 April 2017 Mark Wiesmeyer, PhD, DABR Technical Product Manager Technical talk with insights and results based
More informationVersion 5.6. Quick Start Guide
WWW..COM Version 5.6 Quick Start Guide STANDARD IMAGING, INC. 3120 Deming Way Middleton, WI 53562-1461 Jul / 2018 2018 Standard Imaging, Inc. TEL 800.261.4446 TEL 608.831.0025 FAX 608.831.2202 DOC # 80714-05
More informationDesign and performance characteristics of a Cone Beam CT system for Leksell Gamma Knife Icon
Design and performance characteristics of a Cone Beam CT system for Leksell Gamma Knife Icon WHITE PAPER Introduction Introducing an image guidance system based on Cone Beam CT (CBCT) and a mask immobilization
More informationNEW METHOD OF COLLECTING OUTPUT FACTORS FOR COMMISSIONING LINEAR ACCELERATORS WITH SPECIAL EMPHASIS
NEW METHOD OF COLLECTING OUTPUT FACTORS FOR COMMISSIONING LINEAR ACCELERATORS WITH SPECIAL EMPHASIS ON SMALL FIELDS AND INTENSITY MODULATED RADIATION THERAPY by Cindy D. Smith A Thesis Submitted to the
More information3DVH FAQs. What is PDP questions
3DVH FAQs What is PDP questions 1. Explain the PDP in layman terms. How does PDP work? a. Very simply, PDP uses measured diode data, and compares it to the expected treatment plan data. The differences
More informationMedical Dosimetry 37 (2012) Medical Dosimetry. journal homepage:
Medical Dosimetry 37 (2012) 53-60 Medical Dosimetry journal homepage: www.meddos.org Characterization of responses of 2d array seven29 detector and its combined use with octavius phantom for the patient-specific
More informationVerification of dose calculations with a clinical treatment planning system based on a point kernel dose engine
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, VOLUME 3, NUMBER 2, SPRING 2002 Verification of dose calculations with a clinical treatment planning system based on a point kernel dose engine Lars Weber*
More informationViewRay System Commissioning
ViewRay System Commissioning Kyle R. Padgett, PhD, DABR Assistant Professor University of Miami Viewray Team: Matt Studenski, PhD Chet Ford, PhD Yidong Yang, PhD Nesrin Dogan, PhD Medical Physics Residents:
More informationA method for deconvolution of integrated electronic portal images to obtain incident fluence for dose reconstruction
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, VOLUME 6, NUMBER 4, FALL 2005 A method for deconvolution of integrated electronic portal images to obtain incident fluence for dose reconstruction Wendel Dean
More informationUNCOMPROMISING QUALITY
ION CHAMBERS UNCOMPROMISING QUALITY Designed with over 30 years of scientific integrity for a broad range of dosimetry measurements in diverse radiation beams Farmer-type Chambers For absolute dosimetry
More informationA secondary monitor unit calculation algorithm using superposition of symmetric, open fields for IMRT plans
Louisiana State University LSU Digital Commons LSU Master's Theses Graduate School 2013 A secondary monitor unit calculation algorithm using superposition of symmetric, open fields for IMRT plans Adam
More informationAccuracy of treatment planning calculations for conformal radiotherapy van 't Veld, Aart Adeodatus
University of Groningen Accuracy of treatment planning calculations for conformal radiotherapy van 't Veld, Aart Adeodatus IMPORTANT NOTE: You are advised to consult the publisher's version (publisher's
More informationOn the clinically relevant detector resolution and error detection capability of COMPASS 3D plan verification
On the clinically relevant detector resolution and error detection capability of COMPASS 3D plan verification white paper Nick Narloch Application Specialist, IBA Dosimetry Introduction What is COMPASS?
More informationVerification measurements of an emc algorithm using a 2D ion chamber array
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, VOLUME 17, NUMBER 5, 2016 Verification measurements of an emc algorithm using a 2D ion chamber array Mark D. Wanklyn, 1a Ghirmay Kidane, 2 and Liz Crees 2 Medical
More informationAnalysis of Radiation Transport through Multileaf Collimators Using BEAMnrc Code
American Journal of Biomedical Engineering 216, 6(4): 124-131 DOI: 1.5923/j.ajbe.21664.3 Analysis of Radiation Transport through Multileaf Collimators Using BEAMnrc Code Ankit Kajaria 1,*, Neeraj Sharma
More informationPosition accuracy analysis of the stereotactic reference defined by the CBCT on Leksell Gamma Knife Icon
Position accuracy analysis of the stereotactic reference defined by the CBCT on Leksell Gamma Knife Icon WHITE PAPER Introduction An image guidance system based on Cone Beam CT (CBCT) is included in Leksell
More informationClinical implementation of photon beam flatness measurements to verify beam quality
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, VOLUME 16, NUMBER 6, 2015 Clinical implementation of photon beam flatness measurements to verify beam quality Simon Goodall, a Nicholas Harding, Jake Simpson,
More informationGoals. Scope/exclusions. Outline: follow outline of MPPG (plus rationale & some implementation experiences)
AAPM MEDICAL PHYSICS PRACTICE GUIDELINE # : Commissioning and QA of Treatment Planning Dose Calculations: Megavoltage Photon and Electron Beams Jennifer Smilowitz (Chair), University of Wisconsin-Madison
More informationADVANCING CANCER TREATMENT
The RayPlan treatment planning system makes proven, innovative RayStation technology accessible to clinics that need a cost-effective and streamlined solution. Fast, efficient and straightforward to use,
More informationThe IORT Treatment Planning System. radiance. GMV, 2012 Property of GMV All rights reserved
The IORT Treatment Planning System radiance Property of GMV All rights reserved WHY RADIANCE? JUSTIFICATION Property of GMV All rights reserved ADVANTAGES OF IORT PRECISION: RT guided by direct vision.
More informationFeasibility of 3D Printed Patient specific Phantoms for IMRT QA and Other Dosimetric Special Procedures
Feasibility of 3D Printed Patient specific Phantoms for IMRT QA and Other Dosimetric Special Procedures ehler 046@umn.edu Eric Ehler, PhD Assistant Professor Department of Radiation Oncology What is 3D
More informationAcceptance Testing and Commissioning of Monte Carlo Dose Calculation Systems. Bruce Curran University of Michigan Medical Center Ann Arbor, MI
Acceptance Testing and Commissioning of Monte Carlo Dose Calculation Systems Bruce Curran University of Michigan Medical Center Ann Arbor, MI Disclosure Some of the work discussed in this talk was supported
More informationBasic Radiation Oncology Physics
Basic Radiation Oncology Physics T. Ganesh, Ph.D., DABR Chief Medical Physicist Fortis Memorial Research Institute Gurgaon Acknowledgment: I gratefully acknowledge the IAEA resources of teaching slides
More informationA SYSTEM OF DOSIMETRIC CALCULATIONS
A SYSTEM OF DOSIMETRIC CALCULATIONS INTRODUCTION Dose calculation based on PDD and TAR have Limitations The dependence of PDD on SSD Not suitable for isocentric techniques TAR and SAR does not depend on
More informationMegan A. Wood, M.S. Under the direction of Larry DeWerd, Ph.D. University of Wisconsin Medical Radiation Research Center (UWMRRC)
Megan A. Wood, M.S. Under the direction of Larry DeWerd, Ph.D. University of Wisconsin Medical Radiation Research Center (UWMRRC) NCCAAPM Spring Meeting May 3, 2013 Introduction FFF background Project
More informationTG-148 overview. Introduction. System Overview. System Overview. QA for Helical Tomotherapy: Report of the AAPM Task Group 148. Conflict of Interest:
QA or Helical Tomotherapy: Report o the AAPM Tas Group 148 Members: Conlict o Interest: r. John Balog owns TomoTherapy stoc. Katja Langen (Co-chair) Nio Papaniolaou (Co-chair) Walter Grant Richard Crilly
More informationComparison of absorbed dose distribution 10 MV photon beam on water phantom using Monte Carlo method and Analytical Anisotropic Algorithm
Journal of Physics: Conference Series PAPER OPEN ACCESS Comparison of absorbed dose distribution 1 MV photon beam on water phantom using Monte Carlo method and Analytical Anisotropic Algorithm To cite
More informationDose Calculation and Optimization Algorithms: A Clinical Perspective
Dose Calculation and Optimization Algorithms: A Clinical Perspective Daryl P. Nazareth, PhD Roswell Park Cancer Institute, Buffalo, NY T. Rock Mackie, PhD University of Wisconsin-Madison David Shepard,
More informationThe MSKCC Approach to IMRT. Outline
The MSKCC Approach to IMRT Spiridon V. Spirou, PhD Department of Medical Physics Memorial Sloan-Kettering Cancer Center New York, NY Outline Optimization Field splitting Delivery Independent verification
More informationMonitor Unit (MU) Calculation
Monitor Unit (MU) Calculation Timothy C. Zhu 1, Haibo Lin 1, and JiaJian Shen 2 1 University of Pennsylvania, Philadelphia, PA 2 Mayo Clinic, Phoenix, AZ Introduction Pencil-beam based dose/mu algorithms
More informationVersion 3.7. User Manual
WWW..COM Version 3.7 User Manual STANDARD IMAGING, INC. 3120 Deming Way Middleton, WI 53562-1461 May / 2016 2016 Standard Imaging, Inc. TEL 800.261.4446 TEL 608.831.0025 FAX 608.831.2202 www.standardimaging.com
More informationADVANCING CANCER TREATMENT
3 ADVANCING CANCER TREATMENT SUPPORTING CLINICS WORLDWIDE RaySearch is advancing cancer treatment through pioneering software. We believe software has un limited potential, and that it is now the driving
More informationChapter 9 Field Shaping: Scanning Beam
Chapter 9 Field Shaping: Scanning Beam X. Ronald Zhu, Ph.D. Department of Radiation Physics M. D. Anderson Cancer Center Houston, TX June 14-18, 2015 AAPM - Summer School 2015, Colorado Spring Acknowledgement
More informationImpact of Multileaf Collimator Configuration Parameters on the Dosimetric Accuracy of 6-Mv Intensity-Modulated Radiation Therapy Treatment Plans
Louisiana State University LSU Digital Commons LSU Master's Theses Graduate School 2015 Impact of Multileaf Collimator Configuration Parameters on the Dosimetric Accuracy of 6-Mv Intensity-Modulated Radiation
More informationState-of-the-Art IGRT
in partnership with State-of-the-Art IGRT Exploring the Potential of High-Precision Dose Delivery and Real-Time Knowledge of the Target Volume Location Antje-Christin Knopf IOP Medical Physics Group Scientific
More informationICARO Vienna April Implementing 3D conformal radiotherapy and IMRT in clinical practice: Recommendations of IAEA- TECDOC-1588
ICARO Vienna April 27-29 2009 Implementing 3D conformal radiotherapy and IMRT in clinical practice: Recommendations of IAEA- TECDOC-1588 M. Saiful Huq, Ph.D., Professor and Director, Dept. of Radiation
More informationNew Technology in Radiation Oncology. James E. Gaiser, Ph.D. DABR Physics and Computer Planning Charlotte, NC
New Technology in Radiation Oncology James E. Gaiser, Ph.D. DABR Physics and Computer Planning Charlotte, NC Technology s s everywhere From the imaging chain To the planning system To the linac To QA..it..it
More informationGeant4 in Brachytherapy
Geant4 in Brachytherapy 1. 2. 3. 4. 5. Brachytherapy: Brief Overview Clinical applications Basic research Ultrafast & biology applications Issues for the work group 1 Brachytherapy: Overview Brachy: Greek
More informationPhoton beam dose distributions in 2D
Photon beam dose distributions in 2D Sastry Vedam PhD DABR Introduction to Medical Physics III: Therapy Spring 2014 Acknowledgments! Narayan Sahoo PhD! Richard G Lane (Late) PhD 1 Overview! Evaluation
More informationUse of a commercial ion chamber detector array for the measurement of high spatial resolution photon beam profiles
Received: 17 January 2018 Revised: 27 August 2018 Accepted: 31 August 2018 DOI: 10.1002/acm2.12466 TECHNICAL NOTE Use of a commercial ion chamber detector array for the measurement of high spatial resolution
More informationDAILY LINAC QA BEAM QA
BEAM QA DAILY LINAC QA The QA BeamChecker Plus allows for fast, reliable, and uncomplicated daily QA of Varian, Elekta, Siemens, and Accuray Treatment Machines. The QA BeamChecker Plus is specifically
More information3D SCANNER. 3D Scanning Comes Full Circle. Your Most Valuable QA and Dosimetry Tools
3D SCANNER 3D Scanning Comes Full Circle Your Most Valuable QA and Dosimetry Tools BETTER OUTCOMES THROUGH TECHNOLOGY The 3D SCANNER is different by design. 3D SCANNER has been developed from the ground
More informationLUP. Lund University Publications. Institutional Repository of Lund University
LUP Lund University Publications Institutional Repository of Lund University This is an author produced version of a paper published in Medical Physics. This paper has been peer-reviewed but does not include
More informationTable of Contents. About AQUA
User Manual About AQUA Table of Contents 1 About AQUA... 6 1.1 Radiation Therapy... 6 1.1.1 Workflow manager... 6 1.1.2 Reports... 7 1.1.3 Tests... 7 1.1.4 Many Ways to Work... 7 1.2 Technology... 7 1.3
More informationMeasurement of depth-dose of linear accelerator and simulation by use of Geant4 computer code
reports of practical oncology and radiotherapy 1 5 (2 0 1 0) 64 68 available at www.sciencedirect.com journal homepage: http://www.rpor.eu/ Original article Measurement of depth-dose of linear accelerator
More informationAn Investigation of a Model of Percentage Depth Dose for Irregularly Shaped Fields
Int. J. Cancer (Radiat. Oncol. Invest): 96, 140 145 (2001) 2001 Wiley-Liss, Inc. Publication of the International Union Against Cancer An Investigation of a Model of Percentage Depth Dose for Irregularly
More informationPROVEN TECHNOLOGY IMPROVED
PHANTOMS PROVEN TECHNOLOGY IMPROVED The DoseView 3D is a new 3-axis water phantom for performing comprehensive linear accelerator beam commissioning and quality assurance measurements quickly, accurately
More informationATTENTION! The whole content of the lecture with all the animations can be dowloaded from:
ATTENTION! The whole content of the lecture with all the animations can be dowloaded from: http://www.onko.szote.uszeged.hu/letoltes/radioter_phys_basis/radiother_phys_basis.zip Size > 300 M!!! The dowloaded.zip
More informationDevelopment a simple point source model for Elekta SL-25 linear accelerator using MCNP4C Monte Carlo code
Iran. J. Radiat. Res., 2006; 4 (1): 7-14 Development a simple point source model for Elekta SL-25 linear accelerator using MCNP4C Monte Carlo code. Mesbahi * Department of Medical Physics, Medical School,
More informationTransitioning from pencil beam to Monte Carlo for electron dose calculations
Transitioning from pencil beam to Monte Carlo for electron dose calculations Jessie Huang-Vredevoogd (jyhuang4@wisc.edu) University of Wisconsin NCC AAPM October 12, 2019 1 Topics to cover Background RayStation
More informationMR-guided radiotherapy: Vision, status and research at the UMC Utrecht. Dipl. Ing. Dr. Markus Glitzner
MR-guided radiotherapy: Vision, status and research at the UMC Utrecht Dipl. Ing. Dr. Markus Glitzner About myself Training Medizintechnik TU Graz PhD UMC Utrecht Clinical work Software implementation
More informationA method for determining multileaf collimator transmission and scatter for dynamic intensity modulated radiotherapy a
A method for determining multileaf collimator transmission and scatter for dynamic intensity modulated radiotherapy a Mark R. Arnfield, b) Jeffrey V. Siebers, Jong O. Kim, Qiuwen Wu, Paul J. Keall, and
More informationMCNP4C3-BASED SIMULATION OF A MEDICAL LINEAR ACCELERATOR
Computational Medical Physics Working Group Workshop II, Sep 3 Oct 3, 7 University of Florida (UF), Gainesville, Florida USA on CD-ROM, American Nuclear Society, LaGrange Park, IL (7) MCNP4C3-BASED SIMULATION
More informationDose Distributions. Purpose. Isodose distributions. To familiarize the resident with dose distributions and the factors that affect them
Dose Distributions George Starkschall, Ph.D. Department of Radiation Physics U.T. M.D. Anderson Cancer Center Purpose To familiarize the resident with dose distributions and the factors that affect them
More informationEvaluation of detector array technology for the verification of advanced intensity-modulated radiotherapy
Evaluation of detector array technology for the verification of advanced intensity-modulated radiotherapy by Mohammad Hussien A thesis submitted to the Department of Physics, University of Surrey, for
More informationProduct Catalogue. Products for Radiotherapy. January 2016
Product Catalogue Products for Radiotherapy January 2016 IBA Dosimetry GmbH Bahnhofstraße 5 90592 Schwarzenbruck Deutschland Tel.: +49 9128 607 0 Fax: +49 9128 607 10 dosimetry-info@iba-group.com www.iba-dosimetry.com
More informationUse of Monte Carlo modelling in radiotherapy linac design. David Roberts, PhD Senior Physicist Elekta
Use of Monte Carlo modelling in radiotherapy linac design David Roberts, PhD Senior Physicist Elekta Contents Overview of Elekta What we do Where we use Monte Carlo Codes and resources Example : Agility
More informationph fax Deming Way Middleton WI USA
www.standardimaging.com 800-261-4446. ph 608-831-0025. fax 608-831-2202 3120 Deming Way Middleton WI 53562-1461 USA 2007 Standard Imaging, Inc. 1239-21 (03.07) beam qa LINAC AND TOMOTHERAPY QA The NEW
More informationPyCMSXiO: an external interface to script treatment plans for the Elekta CMS XiO treatment planning system
Journal of Physics: Conference Series OPEN ACCESS PyCMSXiO: an external interface to script treatment plans for the Elekta CMS XiO treatment planning system To cite this article: Aitang Xing et al 2014
More information