[HTML][HTML] In vivo dosimetry in external beam photon radiotherapy: Requirements and future directions for research, development, and clinical practice

I Olaciregui-Ruiz, S Beddar, P Greer, N Jornet… - Physics and imaging in …, 2020 - Elsevier
External beam radiotherapy with photon beams is a highly accurate treatment modality, but
requires extensive quality assurance programs to confirm that radiation therapy will be or …

Evaluation of Daily CT for EPID-Based Transit In Vivo Dosimetry

B Feng, L Yu, E Mo, L Chen, J Zhao, J Wang… - Frontiers in …, 2021 - frontiersin.org
Purpose The difference in anatomical structure and positioning between planning and
treatment may lead to bias in electronic portal image device (EPID)-based in vivo dosimetry …

Site‐specific alert criteria to detect patient‐related errors with 3D EPID transit dosimetry

I Olaciregui‐Ruiz, R Rozendaal, B Mijnheer… - Medical …, 2019 - Wiley Online Library
Purpose To assess the sensitivity of various EPID dosimetry alert indicators to patient‐
related variations and to determine alert threshold values that ensure excellent error …

Analysis of EPID transmission fluence maps using machine learning models and CNN for identifying position errors in the treatment of GO patients

G Dai, X Zhang, W Liu, Z Li, G Wang, Y Liu… - Frontiers in …, 2021 - frontiersin.org
Purpose To find a suitable method for analyzing electronic portal imaging device (EPID)
transmission fluence maps for the identification of position errors in the in vivo dose …

3D dosimetric verification of unity MR-linac treatments by portal dosimetry

I Torres-Xirau, I Olaciregui-Ruiz, J Kaas… - Radiotherapy and …, 2020 - Elsevier
Purpose and background 3D dosimetric verification of online adaptive workflows is essential
as their complexity is unprecedented in radiation oncology. The aim of this work is to …

Evaluation of six TPS algorithms in computing entrance and exit doses

YI Tan, M Metwaly, M Glegg… - Journal of applied …, 2014 - Wiley Online Library
Entrance and exit doses are commonly measured in in vivo dosimetry for comparison with
expected values, usually generated by the treatment planning system (TPS), to verify …

Electronic portal imaging device dosimetry

B McCurdy, P Greer, J Bedford - Clinical 3D dosimetry in modern …, 2017 - taylorfrancis.com
Historically, several different electronic technologies have been utilized to replace the role of
radiographic films in capturing the images, including the scanning liquid ionization chamber …

Two‐dimensional EPID dosimetry for an MR‐linac: proof of concept

I Torres‐Xirau, I Olaciregui‐Ruiz… - Medical …, 2019 - Wiley Online Library
Purpose At our institute, in vivo patient dose distributions are reconstructed for all treatments
delivered using conventional linacs from electronic portal imaging device (EPID) transit …

A simple model for transit dosimetry based on a water equivalent EPID

S Deshpande, SJ Blake, A Xing, PE Metcalfe… - Medical …, 2018 - Wiley Online Library
Purpose The aim of this study was to demonstrate a new model for implementing a transit
dosimetry system as a means of in vivo dose verification with a water equivalent electronic …

EPID dosimetry

PB Greer, P Vial - AIP Conference Proceedings, 2011 - pubs.aip.org
Electronic portal imaging devices (EPIDs) were introduced originally for patient position
verification. The idea of using EPIDs for dosimetry was realised in the 1980s. Little was …