Dose Enhancement for the Flattening-Filter-Free and Flattening-Filter Photon Beams in Nanoparticle-Enhanced Radiotherapy: A Monte Carlo Phantom Study [PDF]
Nanomaterials, 2020 Monte Carlo simulations were used to predict the dose enhancement ratio (DER) using the flattening-filter-free (FFF) and flattening-filter (FF) photon beams in prostate nanoparticle-enhanced radiotherapy, with multiple variables such as nanoparticle ...
Stefano Martelli, James C L Chow
doaj +8 more sources
Evaluation of flattening-filter-free and flattening filter dosimetric and radiobiological criteria for lung SBRT: A volume-based analysis [PDF]
Frontiers in Oncology, 2023 IntroductionThe use of volumetric modulated arc therapy (VMAT) with flattening-filter-free (FFF) beams is becoming more prevalent in lung cancer stereotactic body radiotherapy (SBRT).
Junxiang Wu +4 more
doaj +4 more sources
Verification of Surface Dose for Flattening Filter and Flattening Filter Free Beams in Beam-Matched Medical Linear Accelerators. [PDF]
Asian Pac J Cancer Prev, 2021 The purpose of this study was to evaluate the surface dose (SD) of 6 and 10 MV flattening filter beam (FF) and flattening filter free (FFF) beam for different square field sizes in three Beam-matched medical linear accelerators using a parallel-plate ionization chamber.The experiment was carried out in a phantom composed of 40×40 cm2 solid Water slabs ...
Sushma N +3 more
europepmc +5 more sources
Assessment of Treatment Plan Quality between Flattening Filter and Flattening Filter Free Photon Beam for Carcinoma of the Esophagus with IMRT Technique [PDF]
Journal of Biomedical Physics and Engineering, 2023 Background: As compared to the flattened photon beam, removing the flattening filter (FF) from the head of a gantry decreases the average energy of the photon beam and increases the dose rate, leading to an impact on the quality of treatment plans ...
Dinesh Kumar Saroj +5 more
doaj +4 more sources
Commissioning Measurements of Flattening Filter and Flattening Filter Free Photon Beams Using a TrueBeam Stx® Linear Accelerator [PDF]
Iranian Journal of Medical Physics, 2021 Introduction: TrueBeam STx® latest generation linear accelerators (linacs) were installed at Sheikh Khalifa International University Hospital Casablanca, Morocco, this study aimed to present and analyse the dosimetric characteristics obtained during the ...
Kamal SAIDI +3 more
doaj +2 more sources
Dosimetric comparison of unmatched flattening filter-free and flattened beams in volumetric arc therapy plans for head-and-neck cancer [PDF]
Journal of Medical Physics, 2023 Introduction: Conventionally, the fattened beam is being used in radiotherapy for routine clinical cases even after introduction of intensity-modulated radiotherapy with incorporation of multi-leaf collimator system.
Arvind Kumar +3 more
doaj +2 more sources
Dosimetric and Radiobiological Impact of Flattening Filter‐Free Beam and Dose Calculation Algorithm Using RapidArc Plans for Cervical Cancer Treatment [PDF]
Precision Radiation Oncology, 2023 Purpose The aim of this study is to quantify the potential benefits of a flattening filter‐free (FFF) beam and implement a dose‐computation algorithm for cervical radiotherapy through dosimetric and radiobiological analyses using RapidArc. Methods Thirty‐
Sumanta Manna +3 more
doaj +2 more sources
Comparison Flattening Filter and Flattening Filter-Free Techniques in Small-Fields Dosimetry with Various Types of Detectors. [PDF]
Asian Pac J Cancer PrevThe aim of this study was to investigate the detector size effect on small-field dosimetry and compare the performance of 6MV WFF/FFF techniques.We investigated the detector size effect on small-field dosimetry and compared the performance of 6MV WFF/FFF techniques.
Alashkar EM +5 more
europepmc +3 more sources
DNA strand breaks based on Monte Carlo simulation in and around the Lipiodol with flattening filter and flattening filter-free photon beams. [PDF]
Rep Pract Oncol Radiother, 2022 The current study aims to investigate the DNA strand breaks based on the Monte Carlo simulation within and around the Lipiodol with flattening filter (FF) and flattening filter-free (FFF) photon beams.The dose-mean lineal energy (yD) and DNA single- and double strand breaks (DSB/SSB) based on spatial patterns of inelastic interactions were calculated ...
Kawahara D, Saito A, Nakano H, Nagata Y.
europepmc +3 more sources
Comparison of radiotherapy techniques with flattening filter and flattening filter-free in lung radiotherapy according to the treatment volume size. [PDF]
Sci Rep, 2020 AbstractIn external radiotherapy (RT), the use of flattening filter-free (FFF) radiation beams obtained by removing the flattening filter (FF) in standard linear accelerators is rapidly increasing, and the benefits of clinical use are the issue of research.
Arslan A, Sengul B.
europepmc +4 more sources