Verification of tomotherapy dose delivery
نویسندگان
چکیده
منابع مشابه
Effects of dose scaling on delivery quality assurance in tomotherapy
Delivery quality assurance (DQA) of tomotherapy plans is routinely performed with silver halide film which has a limited range due to the effects of saturation. DQA plans with dose values exceeding this limit require the dose of the entire plan to be scaled downward if film is used, to evaluate the dose distribution in two dimensions. The potential loss of fidelity between scaled and unscaled D...
متن کاملTomotherapy – a different way of dose delivery in radiotherapy
AIM OF THE STUDY Helical tomotherapy is one of the methods of radiotherapy. This method enables treatment implementation for a wide spectrum of clinical cases. The vast array of therapeutic uses of helical tomotherapy results directly from the method of dose delivery, which is significantly different from the classic method developed for conventional linear accelerators. The paper discusses the...
متن کاملPractical dose delivery verification of craniospinal IMRT
Craniospinal irradiation (CSI) using IMRT allows dose sparing to organs-at-risk (OAR) whilst conforming the dose to the target volume. Due to the complexity of treatment involving several isocenters, the dose distribution created by the inverse-planned segmented fields must be verified prior to treatment. We propose and test methods to verify dose delivery using commonly available dosimetry equ...
متن کاملDosimetric verification and quality assurance of running‐start‐stop (RSS) delivery in tomotherapy
The purpose of this study was to evaluate the dosimetric profiles and delivery accuracy of running-start-stop (RSS) delivery in tomotherapy and to present initial quality assurance (QA) results on the accuracy of the dynamic jaw motion, dosimetric penumbrae of the RSS dynamic jaw and the static jaw were measured by radiographic films. Delivery accuracy of the RSS was evaluated by gamma analysis...
متن کاملSU-E-T-182: Delivery Verification of Tomotherapy Treatments Using Exit Detector Sinograms: A Phantom Study.
PURPOSE The objective of this study was to use a liquid water female body phantom to investigate the feasibility of using helical Tomotherapy's exit detector data sinograms (EDDS) for quality assurance of Tomotherapy treatments. METHODS Delivery Verification software (DV-Tool), described by Kapatoes et al., uses EDDS and daily mega-voltage-CT images for delivery sinogram reconstruction and su...
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ژورنال
عنوان ژورنال: Journal of Medical Physics
سال: 2009
ISSN: 0971-6203
DOI: 10.4103/0971-6203.54856