Survey on fan-beam computed tomography for radiotherapy: Current implementation and future perspectives of motion management and surface guidance devices

Autor: Chrysi Papalazarou, Sima Qamhiyeh, Robert Kaatee, Joke De Rouck, Esther Decabooter, Guido C. Hilgers, Koen Salvo, Jacobus van Wingerden, Hilde Bosmans, Brent van der Heyden, Geert Pittomvils, Evelien Bogaert

Publikováno v: Physics and Imaging in Radiation Oncology, Vol 29, Iss , Pp 100523- (2024)

Background and purpose: This work reports on the results of a survey performed on the use of computed tomography (CT) imaging for motion management, surface guidance devices, and their quality assurance (QA). Additionally, it details the collected us

Externí odkaz: https://doaj.org/article/564e767dea6c40fe9293eb09eb2fda47

Consensus guide on CT-based prediction of stopping-power ratio using a Hounsfield look-up table for proton therapy

Autor: Nils Peters, Vicki Trier Taasti, Benjamin Ackermann, Alessandra Bolsi, Christina Vallhagen Dahlgren, Malte Ellerbrock, Francesco Fracchiolla, Carles Gomà, Joanna Góra, Patricia Cambraia Lopes, Ilaria Rinaldi, Koen Salvo, Ivanka Sojat Tarp, Alessandro Vai, Thomas Bortfeld, Antony Lomax, Christian Richter, Patrick Wohlfahrt

Publikováno v: Peters, N, Trier Taasti, V, Ackermann, B, Bolsi, A, Vallhagen Dahlgren, C, Ellerbrock, M, Fracchiolla, F, Gomà, C, Góra, J, Cambraia Lopes, P, Rinaldi, I, Salvo, K, Sojat Tarp, I, Vai, A, Bortfeld, T, Lomax, A, Richter, C & Wohlfahrt, P 2023, ' Consensus guide on CT-based prediction of stopping-power ratio using a Hounsfield look-up table for proton therapy ', Radiotherapy and Oncology, vol. 184, 109675 . https://doi.org/10.1016/j.radonc.2023.109675

Background and purpose: Studies have shown large variations in stopping-power ratio (SPR) prediction from computed tomography (CT) across European proton centres. To standardise this process, a step-by-step guide on specifying a Hounsfield look-up ta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cde091e4de0d431a9879589294a575c3
https://pure.au.dk/portal/da/publications/consensus-guide-on-ctbased-prediction-of-stoppingpower-ratio-using-a-hounsfield-lookup-table-for-proton-therapy(0f833db5-91e1-439c-8cad-765a81d4d640).html

Low-dose CT allows for accurate proton therapy dose calculation and plan optimization

Autor: Masoud Elhamiasl, Koen Salvo, Kenneth Poels, Gilles Defraene, Maarten Lambrecht, Xavier Geets, Edmond Sterpin, Johan Nuyts

Publikováno v: Physics in Medicine and Biology, Vol. 67, no.19 (2022)

Objective. Protons offer a more conformal dose delivery compared to photons, yet they are sensitive to anatomical changes over the course of treatment. To minimize range uncertainties due to anatomical variations, a new CT acquisition at every treatm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ab88baaecf79c3517d420ffefd1a744
https://doi.org/10.1088/1361-6560/ac8dde

openPR - A computational tool for CT conversion assessment with proton radiography

Autor: Koen Salvo, Kevin Souris, Edmond Sterpin, Marie Cohilis, Benoît Macq, Sylvain Deffet, Tom Depuydt

Publikováno v: Medical Physics, (2020)

Purpose One of the main sources of uncertainty in proton therapy is the conversion of the Hounsfield Units of the planning CT to (relative) proton stopping powers. Proton radiography provides range error maps but these can be affected by other source

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::022db7da34983e9d44722d4c3a803c29
https://pubmed.ncbi.nlm.nih.gov/33125725

Plane-dependent ML scatter scaling: 3D extension of the 2D simulated single scatter (SSS) estimate

Autor: Koen Salvo, Michel Defrise, Ahmadreza Rezaei, Thomas Vahle, Johan Nuyts, Vladimir Y. Panin, Fernando E. Boada, Michael E. Casey

Publikováno v: Physics in Medicine & Biology. 62:6515-6531

Scatter correction is typically done using a simulation of the single scatter, which is then scaled to account for multiple scatters and other possible model mismatches. This scaling factor is determined by fitting the simulated scatter sinogram to t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3578015f2f86052612009b4f42322430
https://doi.org/10.1088/1361-6560/aa7a8c