Results 91 to 100 of about 7,739 (203)
Clinical implementation and rapid commissioning of an EPID based in-vivo dosimetry system.
, 2014 Using an Electronic Portal Imaging Device (EPID) to perform in-vivo dosimetry is one of the most effective and efficient methods of verifying the safe delivery of complex radiotherapy treatments.
Hanson, Ian M. +6 more
core +1 more source
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
Clinical experience with EPID dosimetry for prostate IMRT pre-treatment dose verification.
, 2006 The aim of this study was to demonstrate how dosimetry with an amorphous silicon electronic portal imaging device (a-Si EPID) replaced film and ionization chamber measurements for routine pre-treatment dosimetry in our clinic.
van Asselen, B +7 more
core +3 more sources
EPID-based dosimetry to verify IMRT planar dose distribution for the aS1200 EPID and FFF beams
We proposed to perform a basic dosimetry commissioning on a new imager system, the Varian aS1200 electronic portal imaging device (EPID) and TrueBeam 2.0 linear accelerator for flattened (FF) and flattening filter-free (FFF) beams, then to develop an ...
Narges Miri (5755259) +3 more
core
Energy response correction for EPID dosimetry in photon radiation therapy
, 2017 Purpose Electronic portal imaging device (EPID) is a popular tool for a verification of the patient setup for radiation therapy. Recently, it is grabbing attention as a tool for in vivo dosimetry.
715574 +3 more
core
Determination of EPID convolution kernels for portal imaging using carbon target bremsstrahlung
Current Directions in Biomedical Engineering, 2017 Improving the accuracy and reproducibility during patient positioning is of paramount importance. Hence, the goal of this work is to characterize the aspects of image blurring occurring during carbon target bremsstrahlung portal imaging and to assess the
Lüdeke Sascha +5 more
doaj +1 more source
Epid. II, IV y VI: composición de sus historias clínicas
, 2019 This paper consists of an analysis of the clinical histories of Epidemics II, IV and VI, especially as regards its structure, based on a fixed set of data relating to the patient identity and environment, as well as those concerning the disease: cause ...
Esteban Santos, Alicia
core
Multi-parametric Improvements in the CCD Camera-based EPID for Portal Dosimetry
Journal of Medical Signals and Sensors, 2017 Dosimetric verification of radiation treatment has recently been extended by the introduction of electronic portal imaging devices (EPIDs). Detailed dose response specifications of EPID should be addressed prior to any dosimetric application. The present
Vahideh Nazari +6 more
doaj
Catching errors with in vivo EPID dosimetry.
, 2010 The potential for detrimental incidents and the ever increasing complexity of patient treatments emphasize the need for accurate dosimetric verification in radiotherapy.
Tielenburg, R +9 more
core +1 more source
In vivo dosimetry of a photon radiotherapy beam with the use of an a-Si EPID
, 2015 Purpose: The aim of this study is the validation of a new easily applicable EPID dosimetry method based on the back projection approach and the comparison of this method with the EBT2 film dosimetry method.Methods: The dosimetric characteristics of the ...
Kalliopi, Mandourari +1 more
core +1 more source