Results 21 to 30 of about 15,751 (313)

Impact of dosimetric parameters on interplay effects in 6 MV flattening filter-free photon beams to treat lung cancer [PDF]

open access: yesJournal of Medical Physics, 2022
Context: Interplay effects have become the significant problem in lung cancer radiotherapy. Since these effects yield dose variation within the target and surrounding tissues.
Vanida Poolnapol   +2 more
doaj   +2 more sources

Three-dimensional dose comparison of flattening filter (FF) and flattening filter-free (FFF) radiation therapy by using NIPAM gel dosimetry. [PDF]

open access: yesPLoS ONE, 2019
Intensity-modulated radiotherapy and volumetric modulated arc therapy are modern radiation therapy technologies that can create the desired dose distribution by multileaf collimator movement and dose-rate control.
Chun-Hsu Yao   +5 more
doaj   +4 more sources

Planning and Dosimetry Study of Dynamic Intensity-Modulated Radiotherapy and Volumetric-Modulated Arc Therapy for Carcinomas of the Pharynx Using 6MV Flattening Filter and Flattening Filter-free Beams [PDF]

open access: yesJournal of Medical Physics
Objective: This study aims to methodically explore and evaluate the effectiveness of volumetric-modulated arc therapy (VMAT) and intensity modulated radiotherapy (IMRT) with both flattened and unflattened 6MV beams for treating pharyngeal carcinomas ...
E Rajadurai   +4 more
doaj   +2 more sources

Evaluating Mobius3D Dose Calculation Accuracy for Small-Field Flattening- Filter-Free Photon Beams [PDF]

open access: yesTechnology in Cancer Research & Treatment, 2022
Purpose: We aimed to investigate the dose calculation accuracy of Mobius3D for small-field flattening-filter-free x-rays, mainly utilized for stereotactic body radiation therapy (SBRT).
Changhwan Kim PhD   +6 more
doaj   +2 more sources

Comparison of Flattening Filter and Flattening Filter-Free Volumetric Modulated Arc Radiotherapy in Patients with Locally Advanced Nasopharyngeal Carcinoma. [PDF]

open access: yesMed Sci Monit, 2018
BACKGROUND This study aimed to investigate the therapeutic role of flattening filter-free (FFF) mode in volumetric modulated arc therapy (VMAT) compared with flattening filter (FF) mode in patients with locally advanced nasopharyngeal carcinoma (NPC). MATERIAL AND METHODS Ten previously treated patients with NPC underwent treatment re-planning with FFF
Jia F, Xu D, Yue H, Wu H, Li G.
europepmc   +4 more sources

Study of Photoneutron Production for the 18 MV Photon Beam of the Siemens Medical linac by Monte Carlo Simulation [PDF]

open access: yesJournal of Biomedical Physics and Engineering, 2020
Background: Considering the importance of photoneutron production in linear accelerators, it is necessary to describe and measure the photoneutrons produced around modern linear accelerators.
H Dowlatabadi   +4 more
doaj   +1 more source

Plan quality and delivery accuracy of flattening filter free beam for SBRT lung treatments [PDF]

open access: green, 2015
Plan quality and delivery accuracy of flattening filter free beam for SBRT lung ...
Christian Rønn Hansen   +7 more
openalex   +2 more sources

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