Physics in Medicine in the 21 century: new techniques, challenges, problems and solutions

BHPA






Symposium 2006

“Physics in Medicine in the 21 century:

new techniques, challenges, problems and solutions.”
Gent, 20-21 January, 2006

Program of the symposium

Room: Stairwell, level +1

Chairman: F. Sergent

Room: “rector Vermeylen”, level +2
08h35-08h45: Use of a dDVH decomposition technique to evaluate normal tissue complication probability of the liver in the treatment of mesothelioma patients, F. Van den Heuvel et al., University Hospital Gasthuisberg, Leuven, Belgium
08h46-08h56: The evaluation of two different IMRT treatment delivery systems, helical tomotherapy and step ‘n shoot IMRT: an alanine dosimetric verification, M. Duchateau et al., Xios Hogeschool Diepenbeek, Belgium (YPG)
08h57-09h07: Accuracy of patient dose calculation for lung-IMRT: a comparison of Monte Carlo, convolution/superposition and pencil beam computations, B. Vanderstraeten et al., Ghent University, Ghent, Belgium (YPG)
09h08-09h18: Estimating a confidence limit for the integral evaluation of IMRT treatments for head & neck tumours, B. Schaeken et al., ZNA Middelheim, Antwerp, Belgium
09h19-09h29: Leaf and jaw position optimization for intensity-modulated arc therapy (IMAT) applied for a rectal cancer case, A. Olteanu et al., Ghent University Hospital, Ghent, Belgium (YPG)
09h30-09h40: Minimizing the time spent on patient specific QA for IMRT, B. Vanstraelen et al., University Hospital Gasthuisberg, Leuven, Belgium
09h41-09h51: Towards a realistic and effective quality assurance (QA) program for IMRT, C. De Wagter, Ghent University Hospital, Ghent, Belgium
09h52-10h02: Tentative of comparison between step and shoot and dynamic (sliding window and helical tomotherapy) IMRT for head and neck cancer using a SIB approach, M. Tomsej et al., University Hospital Saint-Luc, Brussels, Belgium

08h35-10h02: Session 1b: Radiotherapy I

Chairman: N. Linthout

Room: “rector Gillis”, level +2
08h35-08h45: Development of a body shape contouring system based on the use of a laser telemeter and dedicated to patients treated for breast cancer, M. Van Dycke et al., Clinique St Jean, Brussels, Belgium
08h46-08h56: Copy to phantom: a tool and a toy? B. De Ost et al. ZNA Middelheim, Antwerp, Belgium
08h57-09h07: Quality Assurance in radiotherapy by a mailed thermoluminescence dosimetry procedure at the patient level, A. Swinnen et al. University Hospital Gasthuisberg, Leuven, Belgium
09h08-09h18: Dynamic arc therapy: feasibility for prostate cancer irradiation, L. Harzee, Hospital de Jolimont, Haine St Paul, Belgium (YPG)
09h19-09h29: Comparing different collimation techniques (M3,120 MLC, circular arc) in static and dynamic arc therapy for intracranial STS, J.Alberty et al., A.Z. Sint-Augustinus, Antwerp, Belgium (YPG)
09h30-09h40: Validation of MRI to CT similarity measure voxel-based frameless registration for frame-based radiosurgery treatment plan, F. De Smedt et al., Hôpital Erasme, Brussels, Belgium
09h41-09h51: Measurement strategies for small field dosimetry during the commissioning of the Moduleaf MLC, G. Pittomvils et al., Ghent University Hospital, Ghent, Belgium
09h52-10h02: Modelling the Moduleaf MLC in Pinnacle, G. Pittomvils et al., Ghent University Hospital, Ghent, Belgium

10h02-10h40: Booth Session A, Poster Session A and coffee break

Room: “Refter” and “Kapittelzaal”, level +0

Chairman: F. Peeters

Room: “rector Vermeylen”, level +2
10h40-11h00: Invited speaker: Robert Muller: Biomolecular MRI, Université de Mons-Hainaut, Mons, Belgium
11h00-11h20: Invited speaker: Hilde Bosmans, Frederik De Keyzer: The role of MRI in tumour follow-up, University Hospital Gasthuisberg, Leuven, Belgium

11h20-11h30: Framework for diffusion tensor tractography validation with an anatomically realistic software phantom, S. Delputte et al. University of Ghent, Ghent, Belgium (YPG)
11h30-11h40: DTI of normal appearing spinal cord in elderly, W. Van Hecke et al., University of Antwerp, Belgium (YPG)
11h40-11h50: A single measurement-based method for absolute quantification of metabolites by proton magnetic resonance spectroscopy, M. Özdemir et al., Ghent University, Ghent, Belgium (YPG)

12h00-12h10: Three dimensional radiation dosimetry in lungequivalent regions by use of a radiation sensitive gel foam: preliminary results, Y. De Deene, University Hospital Ghent, Ghent, Belgium
12h10-12h20: Phantom design for diffusion tensor magnetic resonance imaging, E. Fieremans, Ghent University, Ghent, Belgium, (YPG)

12h20-13h30: Booth Session B and lunch break

Room: “Refter” and “Kapittelzaal”, level +0

Chairman: C. De Wagter

Room: “rector Vermeylen”, level +2
13h30-14h20: Invited speaker: Steve Webb: Study of, and correction for, intrafraction motion, Institute of Cancer Research and Royal Marsden NHS Trust, Sutton, Surrey, UK
14h20-14h40: Invited speaker: Philippe Lahorte: Radiology, radiotherapy and nuclear medicine from a patenting perspective, European Patent Office München, Germany
14h40-14h50: A review on three dimensional radiation gel dosimetry, Y. De Deene, Ghent University Hospital, Ghent, Belgium
14h50-15h00: Breathing curve produced by magnetic sensors, D. Huyskens et al., Hospital St Elisabeth, Namur, Belgium
15h00-15h10: Dosimetry of an x-ray orthovoltage beam for the study of the volume effect in the mouse intestine, J.M. Martinez et al., University Hospital Saint-Luc, Brussels, Belgium
15h10-15h20: Intensity modulated photon (IMXT) and proton (IMPT) therapy for the treatment of head and neck tumors, M. Steneker et al., Paul Scherrer Institute, Villigen, Switzerland (YPG)

15h20-16h00: Booth Session C, Poster Session B and coffee break

Room: “Refter” and “Kapittelzaal”, level +0

Chairman: Alex Rijnders

Room: “rector Vermeylen”, level +2

18h30-20h00: Social Event in the center of the medieval town of Ghent
20h00-23h00: Conference Lunch at ‘het Pakhuis’


Saturday January 21 ^st
08h00-11h00: Registration

Room: Stairwell level +1

Chairman: F. Malchair

Room: “rector Vermeylen”, level +2
08h30-08h40: Tandem method for calibrating dose-area product meters, P. Pöyry et al., STUK, Helsinki, Finland (YPG)
08h40-08h50: Comparison of equipment performance for x-ray systems in interventional cardiology, O. Dragusin, University Hospital Gasthuisberg, Leuven, Belgium
08h50-09h00: MONIQA, monitor quality assurance: validation and initial results of a dynamic pattern for daily quality control of medical screen devices, J. Jacobs et al., University Hospital Gasthuisberg, Leuven, Belgium
09h00-09h10: Image quality performance of LCD devices: influence of display resolution, magnification and window settings on contrast-detail detection, K. Bacher et al., Ghent University, Ghent, Belgium (YPG)
09h10-09h20: Repeated (RC)CT imaging during a course of radiotherapy for locally advanced NSCLC patients, G. Bosmans et al., MAASTRO, Maastricht, The Netherlands
09h20-09h30: An adaptive off-line radiation scheme for treatment of prostate cancer using cone-beam CT scans, T. Nuver et al., N.K.I., Amsterdam, The Netherlands
09h30-09h40: Voxel phantom and MCNPX code in staff effective dose estimation, J. Pages et al., Vrije Universiteit Brussel, Brussels, Belgium
09h40-10h00: Invited speaker: Klaus Bacher: Image quality and patient dose with digital radiology, Ghent University, Ghent, Belgium,
10h00-10h20: Special Poster Session

Chairman: D. Verellen (RT)/H. Bosmans (RA)/P. Merlo (N.M.),

Room: “rector Vermeylen”, level +2

Scientific committee presents an overview of the posters,

Authors of the posters are expected to be present.

10h20-11h00: Poster Session C. Evaluation of the posters for the Poster Award,

Attendance of the authors is obliged in front of the poster.

10h20-11h00: Booth Session D and coffee break

Room: “Refter” and “Kapittelzaal”, level +0

Chairman: M. Tomsej

Room: “rector Vermeylen”, level +2
11h00-11h20: Invited speaker: Marcel van Herk: Physics behind image-guided radiotherapy, N.K.I. Amsterdam, The Netherlands
11h20-11h40: Invited speaker: T. Rockwell Mackie: Absolute and relative dosimetry of helical tomotherapy, University of Wisconsin, Madison, U.S.A.


11h40-12h12: Session 5a: Radiotherapy III

Chairman: M. Tomsej

Room: “rector Vermeylen”, level +2
11h40-11h50: Monitor chamber backscatter in a Varian Clinac 2100C/D linear accelerator: influence on the output factors of a 6MV beam, F. Vanhoutte , Heilig Hart ziekenhuis, Roeselare, Belgium (YPG)
11h51-12h01: Acceptance and commissioning of a system for helical tomotherapy: working in non-reference conditions, K. Tournel et al. A.Z.-V.U.B., Brussels, Belgium (YPG)
12h02-12h12: ICRU 72, History and Facts, S. Vynckier et al., University Hospital Saint-Luc, Brussels, Belgium

11h40-12h23: Session 5b: Radiotherapy IV

Chairman: G. Pittomvils

Room: “rector Gillis”, level +2
11h40-11h50: Evaluation and validation of GYN GEC-ESTRO recommended target concepts and dose volume parameters of MR based brachytherapy for cervix cancer, A. Nulens et al., University Hospital Gasthuisberg, Leuven, Belgium (YPG)
11h51-12h01: Retrospective dosimetric analysis of PDR treatment planning in cervix brachytherapy based on 3D MR imaging, M. De Brabandere, University Hospital Gasthuisberg, Leuven, Belgium
12h02-12h12: A variable TG 43 approach to brachytherapy using ¹⁹²Ir wire implants, F. Van den Heuvel et al., University Hospital Gasthuisberg, Leuven, Belgium
12h13-12h23: Absolute and relative dosimetry in tomotherapy using analine and ion chambers, S. Duane al., National Physics Laboratory, Teddington, United Kingdom

12h12-13h40: Booth session E and lunch break

Room: “Refter” and “Kapittelzaal”, level +0

Chairman: J. Nuyts

Room: “rector Vermeylen”, level +2
13h40-14h00: Invited speaker: Koen Van Laere, University Hospital Gasthuisberg, Leuven, Belgium: Neurological applications of PET
14h00-14h20: Invited speaker: Stefaan Vandenberghe: New technological developments in nuclear medicine, Ghent University, Ghent, Belgium

14h20-14h30: Automated tumor delineation in FDG PET images, F. Jacobs et al., University Hospital Ghent, Ghent, Belgium
14h30-14h40: Phased attenuation correction in respiration correlated CT/PET, C. Nagel et al.MAASTRO, Maastricht, The Netherlands (YPG)
14h40-14h50: Image quality improvements for whole body pet with time-of-flight, S. Vandenberghe, Ghent University, Ghent, Belgium
14h50-15h00: Quality control of PET and PET/CT, P. Immesoete et al. AV Controlatom, Vilvoorde, Belgium (YPG)

15h00-15h10: Clinical introduction of respiration correlated (RC) CT/PET I. Potargent et al., XIOS Hogeschool Limburg, Diepenbeek, Belgium, (YPG)

15h10-15h50: Booth session F, coffee break and conference reception sponsored by Elekta

Room: “Refter” and “Kapittelzaal”, level +0

Chairman: Stefaan Vynkcier

Room: “rector Vermeylen”, level +2

16h00-16h05: Brainlab
16h05-16h20: Customer Brainlab
16h20-16h25: Elekta
16h25-16h40: Costumer Elekta
16h40-16h45: Tomotherapy
16h45-17h00: Customer Tomotherapy
17h00-17h05: Varian
17h05-17h20: Costumer Varian
17h20-17h25: Cablon
17h25-17h40: Costumer Cablon
17h40-18h10: Discussion

18h10-18h15: Closing of the conference

Poster Sessions
Session A: Friday 10h00-10h40
Session B: Friday 15h20-16h00
Session C: Saturday 10h00-10h20: Room Vermeylen: Overview and discussion

by the Scientific committee

D. Verellen (RT)/H. Bosmans (RA)/P. Merlo (N.M.),
10h20-11h00: Evaluation of the posters for the Poster Award,

Attendance of the authors in front of the posters is obliged.

Overview of the posters
RT1 - Radiotherapy software for department management and organization, M. Coevoet et al., University Hospital Saint-Luc, Brussels, Belgium
RT2 - Change management in RT, T. Depuydt et al., University Hospital Gasthuisberg, Leuven, Belgium
RT3 - Commissioning of a new Varian TPS algorithm (AAA) considering step and shoot IMRT treatments: dosimetry comparison with measurements and Monte Carlo (BEAMnrc) calculations using a Elekta SL25 linac, E. Sterpin et al., University Hospital Saint-Luc, Brussels, Belgium (YPG)
RT4 - Accuracy of the TPS calculation of matched half beam dose distributions, S. Petillion et al., University Hospital Gasthuisberg, Leuven, Belgium (YPG)
RT5 - IVD in TBI: patient dose, lung dose and reproducibility of the treatment, B. De Ost et al., ZNA Middelheim, Antwerp, Belgium
RT6 - An automatic platform to detect anomalies in treatment planning: Oleander, the Guardian, D. Huyskens et al., Hospital St Elisabeth, Namur, Belgium
RT7 - Comparison of optimisation methods for inverse IMRT planning, Z. Beelen et al., Virga Jesseziekenhuis, Hasselt, Belgium (YPG)
RT8 - Acceptance testing of a treatment planning system, D. Belge et al,, CHU Tivoli, La Louvière, Belgium (YPG)
RT9 - The use of electronic compensators to optimize dose distributions in breast treatments: a feasibility study and first treatments, S. Bernard et al., Clinique Ste Elisabeth, Namur, Belgium

RT10 - Testing of the analytical anisotropic algorithm (AAA) for photon dose distribution, M. Morelle et al., Clinique St Elisabeth, Namur, Belgium