MR Fully Compatible and Safe FBG Breathing Sensor: A Practical Solution for Respiratory Triggering
| Autor: | Marcel Fajkus, Jan Nedoma, Radek Martinek, Jindrich Brablik, Jan Vanus, Martin Novak, Stanislav Zabka, Vladimir Vasinek, Pavla Hanzlikova, Lubomir Vojtisek |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | IEEE Access, Vol 7, Pp 123013-123025 (2019) |
| Druh dokumentu: | article |
| ISSN: | 2169-3536 89853369 |
| DOI: | 10.1109/ACCESS.2019.2937624 |
| Popis: | This publication describes an original simple low-cost MR fully-compatible and safe fiber-optic breathing sensor (FOBS), which can be used for respiratory triggering and for monitoring the development of respiratory rate within the MR environment and can, thus, serve as prevention from the hyperventilation syndrome. The sensor is created by encapsulation of the Bragg grating into conventional nasal oxygen cannulas. The sensor is immune to minor patient movements, thus limiting movement artifacts to a minimum. Thanks to this fact it can be used for the retrospective/prospective respiratory gating. The sensor is immune to electromagnetic interference (EMI) and can thus be used in any magnetic field (1.5T, 3T, and 7T). The sensor prototype has been tested in both laboratory and real magnetic resonance (3T) environments relative to conventional pneumatic respiration references (PRR). The data measured were statistically evaluated using the objective Bland-Altman method (BAM) and the functionality of the proposed solution was confirmed. Respiratory Triggering functionality was confirmed by the radiologic doctors on the basis of analyzing images using the most used respiratory triggered T2 TSE 3D sequences and by objective method using the Blind/Referenceless Image Spatial Quality Evaluator (BRISQUE). |
| Databáze: | Directory of Open Access Journals |
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