Zobrazeno 1 - 10
of 160
pro vyhledávání: '"Ben J. Mijnheer"'
Autor:
Gabriel Paiva-Fonseca, Peter B. Greer, Ben J. Mijnheer, Nuria Jornet, Frank Verhaegen, Boyd McCurdy, Igor Olaciregui-Ruiz, Sam Beddar
Publikováno v:
Physics and Imaging in Radiation Oncology
Physics and Imaging in Radiation Oncology, Vol 15, Iss, Pp 108-116 (2020)
Physics and Imaging in Radiation Oncology, Vol 15, Iss, Pp 108-116 (2020)
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 was administered appropriately. In vivo dosimetry (IVD) is an essenti
Autor:
Anton Mans, Ben J. Mijnheer, F.W. Wittkämper, Thijs Perik, Begoña Vivas-Maiques, Igor Olaciregui-Ruiz, J. Kaas
Publikováno v:
Journal of Applied Clinical Medical Physics
Purpose Despite their availability and simplicity of use, Electronic Portal Imaging Devices (EPIDs) have not yet replaced detector arrays for patient specific QA in 3D. The purpose of this study is to perform a large scale dosimetric evaluation of tr
Autor:
Begoña Vivas-Maiques, Anton Mans, Sandra van der Velden, Igor Olaciregui-Ruiz, Marlies E. Nowee, Ben J. Mijnheer
Publikováno v:
Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology. 157
Background and purpose The Unity MR-Linac is equipped with an EPID, the images from which contain information about the dose delivered to the patient. The purpose of this study was to introduce a framework for the automatic dosimetric verification of
Autor:
P. Gonzalez, Thijs Perik, Ben J. Mijnheer, Anton Mans, Igor Olaciregui-Ruiz, Aldemar Torres Valderrama
Publikováno v:
Physics in Medicine & Biology. 66:11NT01
We developed and validated a dedicated small field back–projection portal dosimetry model for pretreatment and in vivo verification of stereotactic plans entailing small unflattened photon beams. For this purpose an aSi–EPID was commissioned as a
Autor:
G. Kertzscher, Ben J. Mijnheer, Igor Olaciregui-Ruiz, Gabriel P. Fonseca, Sam Beddar, Boyd McCurdy, Luc Beaulieu, Peter B. Greer, Ryan L. Smith, J.G. Johansen, Frank Verhaegen, Nuria Jornet, Kari Tanderup
Publikováno v:
Physics and Imaging in Radiation Oncology
Physics and Imaging in Radiation Oncology, Vol 16, Iss, Pp 18-19 (2020)
Verhaegen, F, Fonseca, G P, Johansen, J G, Beaulieu, L, Beddar, S, Greer, P, Jornet, N, Kertzscher, G, McCurdy, B, Smith, R L, Mijnheer, B, Olaciregui-Ruiz, I & Tanderup, K 2020, ' Future directions of in vivo dosimetry for external beam radiotherapy and brachytherapy ', Physics and Imaging in Radiation Oncology, vol. 16, pp. 18-19 . https://doi.org/10.1016/j.phro.2020.09.001
Physics & Imaging in Radiation Oncology, 16, 18-19. Elsevier Ireland Ltd
Physics and Imaging in Radiation Oncology, Vol 16, Iss, Pp 18-19 (2020)
Verhaegen, F, Fonseca, G P, Johansen, J G, Beaulieu, L, Beddar, S, Greer, P, Jornet, N, Kertzscher, G, McCurdy, B, Smith, R L, Mijnheer, B, Olaciregui-Ruiz, I & Tanderup, K 2020, ' Future directions of in vivo dosimetry for external beam radiotherapy and brachytherapy ', Physics and Imaging in Radiation Oncology, vol. 16, pp. 18-19 . https://doi.org/10.1016/j.phro.2020.09.001
Physics & Imaging in Radiation Oncology, 16, 18-19. Elsevier Ireland Ltd
Publikováno v:
Medical physicsReferences. 47(1)
Purpose In vivo EPID dosimetry is meant to trigger on relevant differences between delivered and planned dose distributions and should therefore be sensitive to changes in patient position and patient anatomy. Three-dimensional (3D) EPID back-project
Autor:
P. Gonzalez, Igor Olaciregui-Ruiz, R. Rozendaal, H. Spreeuw, Ben J. Mijnheer, Anton Mans, Marcel van Herk
Publikováno v:
Medical Physics. 43:3969-3974
Purpose: Delivery errors during radiotherapy may lead to medical harm and reduced life expectancy for patients. Such serious incidents can be avoided by performing dose verification online, i.e., while the patient is being irradiated, creating the po
Publikováno v:
Medical physics. 46(1)
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 detectability. Methods Our virtual dose reconstruction method uses in air E
Autor:
Igor Olaciregui-Ruiz, R. Rozendaal, Ben J. Mijnheer, Ali Jomehzadeh, H. Spreeuw, Anton Mans, Parvaneh Shokrani, P. Gonzalez, R. Tielenburg
Publikováno v:
Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB). 54
Purpose To investigate the effectiveness of an EPID-based 3D transit dosimetry system in detecting deliberately introduced errors during VMAT delivery. Methods An Alderson phantom was irradiated using four VMAT treatment plans (one prostate, two head
Autor:
Igor Olaciregui-Ruiz, U. A. van der Heide, G Baldvinsson, Iban Torres-Xirau, Anton Mans, Ben J. Mijnheer
Publikováno v:
Physics in Medicine and Biology, 63(2). IOP
Electronic portal imaging devices (EPIDs) are frequently used in external beam radiation therapy for dose verification purposes. The aim of this study was to investigate the dose-response characteristics of the EPID in the Unity MR-linac (Elekta AB,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2991e057ea5384d710358263a4a3798
https://hdl.handle.net/1887/3280452
https://hdl.handle.net/1887/3280452