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

Evaluation of a metal artifact reduction algorithm in CT studies used for proton radiotherapy treatment planning

Autor: Karin M. Andersson, Anders Ahnesjö, Christina Vallhagen Dahlgren

Publikováno v: Journal of Applied Clinical Medical Physics

Metal objects in the body such as hip prostheses cause artifacts in CT images. When CT images degraded by artifacts are used for treatment planning of radiotherapy, the artifacts can yield inaccurate dose calculations and, for particle beams, erroneo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b439e15559db1e698f513948938114d
https://doi.org/10.1120/jacmp.v15i5.4857

Implementation of pencil kernel and depth penetration algorithms for treatment planning of proton beams

Autor: Christina Vallhagen Dahlgren, Anders Montelius, Erik Grusell, Ulf Isacsson, Anders Ahnesjö, Mikael Saxner, Stefan Lorin, Kellie R. Russell, Bengt Glimelius

Publikováno v: Physics in Medicine and Biology. 45:9-27

The implementation of two algorithms for calculating dose distributions for radiation therapy treatment planning of intermediate energy proton beams is described. A pencil kernel algorithm and a depth penetration algorithm have been incorporated into

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e14aae695b5266f2beaad22b575f11cb
https://doi.org/10.1088/0031-9155/45/1/302

Portal dose image verification: formalism and application of the collapsed cone superposition method

Autor: Göran Rikner, Anders Ahnesjö, Christina Vallhagen Dahlgren, Anders Montelius

Publikováno v: Physics in medicine and biology. 47(24)

A formalism tailored for portal dose image verification is proposed to facilitate the comparison of calculated and measured portal dose distributions. Each portal image is converted into a dose proportional image and normalized to the reference beam

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7cca372e7d220b21e96822390df6475
https://pubmed.ncbi.nlm.nih.gov/12539978

The role of N-acetylcysteine as a putative radioprotective agent on X-ray-induced DNA damage as evaluated by alkaline single-cell gel electrophoresis

Autor: Björn Hellman, Gregor Abt, Erich Gebhart, Hamid Vaghef, Christina Vallhagen Dahlgren

Publikováno v: Mutation research. 384(1)

Samples of human whole blood from 8 different donors were incubated with physiological saline or N-acetyl-L-cysteine (NAC, 1 x 10(-3) M) before being irradiated in vitro with high-energy X-rays (0.7 or 2.0 Gy). Primary DNA damage was evaluated in iso

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5968baa2abae20ed73e299e227e8717
https://pubmed.ncbi.nlm.nih.gov/9201273