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Improving bleeding detector features for electron intraoperative radiotherapy

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Improving bleeding detector features for electron intraoperative radiotherapy

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dc.contributor.author	Sanchis Peris, Enrique
dc.contributor.author	Casans Berga, Silvia
dc.contributor.author	García Gil, Rafael
dc.contributor.author	Martos Torres, Julio
dc.contributor.author	Sanchis Sánchez, Enrique
dc.contributor.author	Pérez Calatayud, Ignacio
dc.contributor.author	Pérez Calatayud, María José
dc.contributor.author	Pérez Calatayud, José
dc.date.accessioned	2023-11-15T11:47:34Z
dc.date.available	2023-11-15T11:47:34Z
dc.date.issued	2019
dc.identifier.uri	https://hdl.handle.net/10550/91167
dc.description.abstract	Purpose: The aim of this work is to improve the potential bleeding detection during intraoperative radiotherapy with linac polymethyl methacrylate applicators (PMMA), based on one previously developed. The improvements carried out have been focused on: i) minimizing the impact of the detector on the visual through the plastic applicators and ii) avoiding the asymmetry in the detection capability when the applicator is tilted. Methods: Simulations have been made to select the geometry that provides a reduced visual impact on the applicator as well as allowing an independent response with the tilting angle of the applicator. A low-noise circuit for signal conditioning has been developed. Measurements have been made on three setups: 10 cm, 7 cm and 4 cm applicator diameters, 0° and 45° tilted. Results: The detector has a visibility through the applicator greater than 50%. Due to the geometry, optimal detection is ensured regardless of its orientation when the applicator is tilted. It is possible to detect the presence of ﬂuid well below the typical perturbing ﬂuid depth established by the clinic (1-1.5 cm). Conclusions: The detector can distinguish the presence of around 0.5 cm of ﬂuid depth while showing a high visual ﬁeld through the PMMA applicators and providing a measure that does not depend on the detector orientation when the applicator is tilted. The prototype is ready for its industrialization by embedding it into the applicator for clinical use. The detector would have a signiﬁcant impact on both the quality assurance and the outcome of the treatment.
dc.language.iso	eng
dc.relation.ispartof	Physica Medica, 2019, vol. 65, p. 150-156
dc.source	Sanchis Peris, Enrique, Casans Berga, Silvia, García Gil, Rafael, Martos Torres, Julio Sanchis Sánchez, Enrique, Pérez Calatayud, Ignacio, Pérez Calatayud, María José, Pérez Calatayud, José (2019). Improving bleeding detector features for electron intraoperative radiotherapy. Physica Medica, 65, 150 156. https://doi.org/10.1016/j.ejmp.2019.08.015
dc.subject	electrònica
dc.subject	electrònica aparells i instruments
dc.subject	electrònica mèdica
dc.title	Improving bleeding detector features for electron intraoperative radiotherapy
dc.type	journal article
dc.date.updated	2023-11-15T11:47:34Z
dc.identifier.doi	10.1016/j.ejmp.2019.08.015
dc.identifier.idgrec	134018
dc.rights.accessRights	open access