Results 41 to 50 of about 25,468 (231)
An electronic portal image device (EPID)‐based multiplatform rapid daily LINAC QA tool
Journal of Applied Clinical Medical Physics, 2021 Purpose To develop an efficient and economic daily quality research tool (DQRT) for daily check of multiplatform linear accelerators (LINACs) with flattening filter (FF) and flattening filter‐free (FFF) photon beams by using an Electronic Portal Image ...
Yangguang Ma +6 more
semanticscholar +1 more source
Journal of Medical Physics, 2012 The dose delivery verification for a head and neck static intensity modulated radiation therapy (IMRT) case using a scanning liquid ionization chamber electronic portal imaging device (SLIC-EPID) was investigated.
Mohammad Mohammadi, Eva Bezak
doaj +1 more source
A quality assurance phantom for electronic portal imaging devices [PDF]
, 2011 Electronic portal imaging device (EPID) plays an important role in radiation therapy portal imaging, geometric and dosimetric verification. Consistent image quality and stable radiation response is necessary for proper utilization that requires routine ...
Cao, Minsong +6 more
core +1 more source
EPID in vivo dosimetry in RapidArc technique [PDF]
Reports of Practical Oncology & Radiotherapy, 2010 The aim of the study was to estimate the dose at the reference point applying an aSi-EPID device in the course of patient treatment.The method assumes direct proportionality between EPID signal and dose delivered to the patient reference point during the treatment session.
Slosarek, Krzysztof +3 more
openaire +2 more sources
Journal of Applied Clinical Medical Physics, 2021 The purpose of this study was to compare pretreatment volumetric modulated arc therapy (VMAT) quality assurance (QA) measurements and evaluate the multileaf collimator (MLC) error sensitivity of two detectors: the integral quality monitor (IQM) system ...
Melissa Ghafarian +2 more
semanticscholar +1 more source
Proof of Luck: an Efficient Blockchain Consensus Protocol [PDF]
, 2017 In the paper, we present designs for multiple blockchain consensus primitives and a novel blockchain system, all based on the use of trusted execution environments (TEEs), such as Intel SGX-enabled CPUs.
Castro M. +4 more
core +2 more sources
PLoS ONE, 2019 PURPOSE:The goal of this study was to investigate the effectiveness of monitoring relevant variations during treatments for electronic portal imaging device (EPID)-based 3D in vivo verification performed using planning CTs.
Yinghui Li +4 more
doaj +1 more source
EPID – a useful interfraction QC tool
Polish Journal of Medical Physics and Engineering, 2019 Abstract Biomedical accelerators used in radiotherapy are equipped with detector arrays which are commonly used to obtain the image of patient position during the treatment session. These devices use both kilovolt and megavolt x-ray beams.
Klimas, Aleksandra +9 more
openaire +3 more sources
VERIFIKASI GEOMETRI DAN INDEKS GAMMA PADA PESAWAT LINAC TIPE CLINAC CX TERINTEGRASI EPID DI RS UNIVERSITAS ANDALAS VERIFIKASI GEOMETRI DAN INDEKS GAMMA PADA PESAWAT LINAC TIPE CLINAC CX TERINTEGRASI EPID DI RS UNIVERSITAS ANDALAS [PDF]
Wahana Fisika: Jurnal Penelitian Fisika dan Terapannya, 2019 Telah dilakukan verifikasi geometri dan indeks gamma pada pesawat Linac tipe Clinac CX yang terintegrasi Electronic Portal Imaging Device (EPID) di Rumah Sakit Universitas Andalas. Verifikasi bertujuan untuk mengetahui kondisi pesawat Linac.
Dian Milvita, Bagus Sidik Waskito Hadi
doaj +1 more source
Data sharing: What about epidemiological cohorts? [PDF]
, 2011 General-purpose population-based cohorts can be powerful scientific platforms. The Gazel Cohort Study, a French cohort of 20,000 adults followed-up since more than 20 years, was designed as an open epidemiologic laboratory, hosting more than 40 nested ...
Marcel Goldberg, Marie Zins
core +2 more sources