Conveners
Thursday afternoon - Poster Presentations - Screen3
- Oleg Belyakov (IAEA)
Aicha Maachou
(Centre de Recherche Nucléaire d'Alger)
22/06/2017, 15:30
Dosimetry
Poster
Background of the study: The complex and individualized photon fluence patterns constructed during intensity modulated radiation therapy (IMRT) treatment planning must be verified before they are delivered to the patient. The aim of this work is to implement the Amorphous silicon (aSi) Electronic Portal Imaging Devices (EPIDs) in the process of IMRT treatment plans verification. The aim of...
Seyed Ali Rahimi
(Mazandaran University of Medical Sciences)
22/06/2017, 15:40
Dosimetry
Poster
Background and purpose: Small field sizes are increasingly used in radiotherapy to deliver higher dose gradient to patients. Estimating dosimetric parameters for such fields in non-reference conditions based on the conventional protocols used at large fields, as used in the reference condition, lead to significant errors. The primary aim of this study was to determine and compare small fields...
Egor Titovich
(N.N. Alexandrov National Cancer Centre of Belarus)
22/06/2017, 15:45
Dosimetry
Poster
Aim or Objective: To quantify the impact of geometrical uncertainties in patient position during prostate cancer irradiation on the PTV and CTV related dose-volume statistics and to analyze the results obtained for the 3D CRT, IMRT and VMAT techniques.
Methodology: For our study, we analyzed 220 treatment plans of the prostate cancer patients that were treated in the N.N. Alexandrov...
Angelo Filippo MONTI
(Ospedale Niguarda - Milan, Italy)
22/06/2017, 15:50
Dosimetry
Poster
Introduction: In lung cancer, SBRT is often used to deliver high doses to a small dense lesion (GTV) moving into a low density tissue (the margin generating the PTV).
In order to reach an acceptable degree of accuracy, type B or MC-based algorithms should be adopted.
If a modulated technique (IMRT or VMAT) is used to treat such inhomogeneous PTV, an apparently homogeneous dose distribution...
