Results 101 to 110 of about 8,715 (199)
BMC Cardiovascular Disorders, 2019 Background Despite currently available treatments, the burden of myocardial infarction (MI) morbidity and mortality remains prominent. The aim of this was to investigate the risk of developing subsequent cardiovascular events in MI patients. Methods This
Ville Kytö +5 more
doaj +1 more source
Advanced Biomedical Research, 2016 Background: The use of electronic portal imaging devices (EPIDs) is a method for the dosimetric verification of radiotherapy plans, both pretreatment and in vivo.
Ali Jomehzadeh +3 more
doaj +1 more source
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
MO-FG-202-07: Real-Time EPID-Based Detection Metric For VMAT Delivery Errors.
, 2016 PURPOSE To create and test an accurate EPID-frame-based VMAT QA metric to detect gross dose errors in real-time and to provide information about the source of error. METHODS A Swiss cheese model was created for an EPID-based real-time QA process.
Siebers, J V +4 more
core +1 more source
NowotworyINTRODUCTION: Dosimetry verification is required before starting each treatment. The legal regulations do not clearly define one method of plan verification.
Adam Gądek +4 more
doaj +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 +2 more
core +1 more source
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
ENFERMEDAD PULMONAR INTERSTICIAL DIFUSA (EPID)
Revista Cuarzo, 2016 Si bien es cierto que la radiografía simple del tórax permite sospechar la presencia de enfermedad pulmonar instersticial, la tomografía axial computarizada (TACAR) es más sensible y específica en la valoración de pacientes con esta enfermedad. En este artículo se trata sobre los patrones básicos que permiten identificar los diversos grupos de EPID ...
openaire +3 more sources
EPIDの画質向上を目的とした散乱光子とエネルギー特性に関する研究 [PDF]
, 2016 首都大学東京修士（放射線学）現在、放射線治療での照射技術として画像誘導放射線治療が広く用いられている。画像誘導放射線治療を行うにあたっては、位置照合装置が放射線治療装置と同室に設置されている必要あり、位置照合装置としてEPIDがある。EPIDで取得した位置照合画像は、人体からの散乱線により画質低下が起こり、正確に位置照合を行えない可能性がある。よって本研究では、計算時間の短縮のため、モンテカルロシミュレーションを用いずに、一回散乱光子のみの除去を行うことでEPID画像の画質改善を試みることを目的として ...
カサイ, ユウヤ +2 more
core
[Obstructive Sleep Apnea in Interstitial Lung Disease: an underdiagnosed comorbidity]. [PDF]
Open Respir ArchLeón-Román F +9 more
europepmc +1 more source