Výsledky vyhledávání - "Sylvain Deffet"

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

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Validation of the proton range accuracy and optimization of CT calibration curves utilizing range probing

Autor: Antje-Christin Knopf, Johannes A. Langendijk, Stefan Both, Arturs Meijers, D. Wagenaar, Sylvain Deffet, J. Free

Publikováno v: Physics in Medicine and Biology, 65(3):03NT02. IOP PUBLISHING LTD

Proton therapy is affected by range uncertainty, which is partly caused by an ambiguous conversion from x-ray attenuation to proton stopping power. CT calibration curves, or Hounsfield look-up tables (HLUTs), are institution-specific and may be a sou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2680bab4d17be9088406968485bea5d
https://research.rug.nl/en/publications/e544424a-6e41-4f15-8e1c-f5457de62c2c

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Technical Note: A direct ray-tracing method to compute integral depth dose in pencil beam proton radiography with a multilayer ionization chamber

Autor: François Vander Stappen, Paolo Farace, Sylvain Deffet, R. Righetto, Arturs Meijers

Publikováno v: Medical Physics. 43:6405-6412

Purpose: To introduce a fast ray-tracing algorithm in pencil proton radiography (PR) with a multilayer ionization chamber (MLIC) for in vivo range error mapping. Methods: Pencil beam PR was obtained by delivering spots uniformly positioned in a squar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b900704a2927533752109ee3c5abfc5d
https://doi.org/10.1118/1.4966703

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Water Equivalent Thickness Estimation Via Sparse Deconvolution of Proton Radiography Data

Autor: François Vander Stappen, Sylvain Deffet, Benoît Macq, Paolo Farace

Publikováno v: ICASSP

Proton radiography using a multilayer ionization chamber can potentially be used for assessing the quality of the stopping power computation in proton therapy. However, the finite proton beam profile leads to a degradation of the depth-dose curves (�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d2f699c406b0ca360a71df4320e14be3
https://doi.org/10.1109/icassp.2018.8461591

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