A novel QA phantom based on scintillating fiber ribbons with implementation of 2D dose tomography for small‐field radiotherapy

Autor: Josué Esteves, Odran Pivot, Julien Ribouton, Patrice Jalade, Abdelaali Zouaoui, Laurent Desbat, Simon Rit, Frédéric Blanc, Guido Haefeli, Plamen Hopchev, Jean‐Marc Galvan, Guo‐Neng Lu, Patrick Pittet

Publikováno v: Medical Physics. 50:619-632

To develop a novel instrument for real-time quality assurance (QA) procedures in radiotherapy. The system implements a scintillation-based phantom and associated signal acquisition and processing modules and aims to monitor two-dimensional (2D) dose

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa7424589b4be8832d4fc847ca02c697
https://doi.org/10.1002/mp.15902

A tomographic reconstruction algorithm for cross-sectional imaging of IMRT beams from six projections

Autor: Odran Pivot, Patrick Pittet, Rolf Clackdoyle, Laurent Desbat, Simon Rit

Publikováno v: Physics in Medicine & Biology. 68:095015

Objective. Patient-specific Quality Assurance (QA) measurements are of key importance in radiotherapy for safe and efficient treatment delivery and allow early detection of clinically relevant errors. Such QA processes remain challenging to implement

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0c65469730cd3918e3051c967b7909a5
https://doi.org/10.1088/1361-6560/acc925

Region-of-Interest CT Reconstruction using Object Extent and Singular Value Decomposition

Autor: Rolf Clackdoyle, S. Rit, Aurelien Coussat, Michel Defrise, Jean Michel Létang, Laurent Desbat

Publikováno v: IEEE Transactions on Radiation and Plasma Medical Sciences
IEEE Transactions on Radiation and Plasma Medical Sciences, IEEE, In press, ⟨10.1109/TRPMS.2021.3091288⟩
IEEE Transactions on Radiation and Plasma Medical Sciences, IEEE, 2021, ⟨10.1109/TRPMS.2021.3091288⟩

International audience; In computed tomography, a whole scan of the object may be impossible, generally because the object is larger than the scanner field-of-view. Such a set up leads to truncated projections. Using differentiated backprojection, th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c90a1800140939b820645734ce246a4a
https://hal.archives-ouvertes.fr/hal-03275441/document

Sufficient field-of-view for the M-line method in cone-beam CT

Autor: Laurent Desbat, Nicolas Gindrier, Simon Rit, Rolf Clackdoyle

Publikováno v: 2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)
2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), Oct 2020, Boston (virtual), United States
HAL
2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), Oct 2020, Boston (virtual), United States. ⟨10.1109/NSS/MIC42677.2020.9507794⟩

This work concerns region-of-interest reconstruction in cone-beam CT with transverse and axial truncation. We study two cylindrical fields of view configurations with a saddle X-ray source trajectory. We give sufficient conditions for accurate image

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9de92f446fd809771df589127cb14160
https://hal.archives-ouvertes.fr/hal-03098423/document

Automatic geometric calibration in 3D parallel geometry

Autor: Hung Nguyen, Rolf Clackdoyle, Laurent Desbat

Publikováno v: Physics of Medical Imaging
Physics of Medical Imaging, Feb 2020, Houston, United States. pp.133, ⟨10.1117/12.2549568⟩

International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a699f3a8b45e9613aa1c6a2117606f6
https://hal.archives-ouvertes.fr/hal-03101279