Plan quality and delivery accuracy of flattening filter free beam for SBRT lung treatments
نویسندگان
چکیده
منابع مشابه
Feasibility and early clinical assessment of flattening filter free (FFF) based stereotactic body radiotherapy (SBRT) treatments
PURPOSE To test feasibility and safety of clinical usage of Flattening Filter Free (FFF) beams for delivering ablative stereotactic body radiation therapy (SBRT) doses to various tumor sites, by means of Varian TrueBeam™ (Varian Medical Systems). METHODS AND MATERIALS Seventy patients were treated with SBRT and FFF: 51 lesions were in the thorax (48 patients),10 in the liver, 9 in isolated ab...
متن کاملStudy of Dosimetric Properties of Flattening Filter Free Photon Beam Passing through Cadmium Free Compensator Alloy
Background: This study aims to investigate radiation beam geometry of Cyberknife beam and change in dosimetric characteristics of six megavoltage (6MV) flattening filter free (FFF) beam after passing through high density cadmium free compensator alloy.Material and Methods: In this experimental study, changes in FFF beam dosimetric characteristics after passing through compensator alloy wa...
متن کاملCommissioning and verification of the collapsed cone convolution superposition algorithm for SBRT delivery using flattening filter‐free beams
Linacs equipped with flattening filter-free (FFF) megavoltage photon beams are now commercially available. However, the commissioning of FFF beams poses challenges that are not shared with traditional flattened megavoltage X-ray beams. The planning system must model a beam that is peaked in the center and has an energy spectrum that is softer than the flattened beam. Removing the flattening fil...
متن کاملComparison of Anisotropic Analytic Algorithm Plan and Acuros XB Plan for Lung Stereotactic Ablative Radiotherapy Using Flattening Filter-Free Beams
210 This work was supported by grant no 02-2013-110 from the SNUBH Research Fund. Received 8 December 2014, Revised 16 December 2014, Accepted 19 December 2014 Correspondence: Jeong-Woo Lee ([email protected]) Tel: 82-2-2030-5393, Fax: 82-2-2030-5383 cc This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons....
متن کاملCombining tissue-phantom ratios to provide a beam-quality specifier for flattening filter free photon beams.
PURPOSE There are currently several commercially available radiotherapy treatment units without a flattening filter in the beam line. Unflattened photon beams have an energy and lateral fluence distribution that is different from conventional beams and, thus, their attenuation properties differ. As a consequence, for flattening filter free (FFF) beams, the relationship between the beam-quality ...
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ژورنال
عنوان ژورنال: Acta Oncologica
سال: 2014
ISSN: 0284-186X,1651-226X
DOI: 10.3109/0284186x.2014.956184