[OA131] Experimental study of dynamic dose interplay for flattening filter free beams in VMAT SBRT lung treatments

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Experimentally studied dynamic dose interplay does not meaningfully affect target dose in VMAT SBRT lung treatments.

PURPOSE The effects of respiratory motion on the tumor dose can be divided into the gradient and interplay effects. While the interplay effect is likely to average out over a large number of fractions, it may play a role in hypofractionated [stereotactic body radiation therapy (SBRT)] treatments. This subject has been extensively studied for intensity modulated radiation therapy but less so for...

متن کامل

Effect of dose rate on antitumor activity in hypoxic cells by using flattening filter free beams

Background: Recently, the Flattening Filter Free (FFF) beams, which allow a dose rate increase of up to four times compared to the normal dose rate, have been incorporated into radiation therapy machines. The aim of this study is to evaluate antitumor activity in hypoxic cells irradiated with different dose rates using FFF beams and to identify the casual mechanism for cellular damage during ir...

متن کامل

Investigation of Neutron Contamination of Flattening Filter and Flattening Filter-Free 10-MV Photon Beams in Elekta InfinityTM Accelerator

Introduction: This study aimed to measure the neutron contamination of flattening filter (FF) and flattening filter-free (FFF) 10-MV photon beams delivered by the Elekta InfinityTM accelerator. Material and Methods: The photoneutron spectrum produced by the Linac head was evaluated using a Monte Carlo (MC) simulation. The geometry ...

متن کامل

Linac based SBRT for prostate cancer in 5 fractions with VMAT and flattening filter free beams: preliminary report of a phase II study

BACKGROUND To evaluate the feasibility and early side effects of a short course hypo-fractionated SBRT programme with Volumetric Modulated Arc Therapy (VMAT) and Flattening Filter Free (FFF) beams. METHODS A prospective phase I-II study, started on February 2012. Inclusion criteria were: age ≤ 80 years, WHO-PS ≤ 2, PSA ≤ 20 ng/ml, histologically proven prostate adenocarcinoma, T1-T2 stage, no...

متن کامل

Benchmarking Flattening Filter - Free Photons for IMRT / VMAT Using TG

Benchmarking Flattening Filter-Free Photons for IMRT/VMAT using TG119 By Sarah Ashmeg Graduate Program in Medical Physics Duke University Date: _______________________ Approved: ___________________________ Jennifer O’Daniel, Co-Supervisor ___________________________ Fang-Fang Yin, Co-Supervisor ___________________________ Timothy Turkington An abstract of a thesis submitted in partial fulfillme...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physica Medica

سال: 2018

ISSN: 1120-1797

DOI: 10.1016/j.ejmp.2018.06.203