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Título: | Respiratory function monitoring using a real-time three-dimensional fiber-optic shaping sensing scheme based upon fiber Bragg gratings |
Autor: | Allsop, Thomas D.P. CSIC ORCID; Bhamber, R. S. CSIC; Lloyd, G.; Miller, M. R.; Dixon, A.; Webb, D.; Ania Castañón, Juan Diego CSIC ORCID; Bennion, I. | Fecha de publicación: | 2012 | Editor: | The International Society for Optics and Photonics | Citación: | Journal of Biomedical Optics 17: 117001 (2012) | Resumen: | An array of in-line curvature sensors on a garment is used to monitor the thoracic and abdominal movements of a human during respiration. The results are used to obtain volumetric changes of the human torso in agreement with a spirometer used simultaneously at the mouth. The array of 40 in-line fiber Bragg gratings is used to produce 20 curvature sensors at different locations, each sensor consisting of two fiber Bragg gratings. The 20 curvature sensors and adjoining fiber are encapsulated into a low-temperature-cured synthetic silicone. The sensors are wavelength interrogated by a commercially available system from Moog Insensys, and the wavelength changes are calibrated to recover curvature. A three-dimensional algorithm is used to generate shape changes during respiration that allow the measurement of absolute volume changes at various sections of the torso. It is shown that the sensing scheme yields a volumetric error of 6%. Comparing the volume data obtained from the spirometer with the volume estimated with the synchronous data from the shape-sensing array yielded a correlation value 0.86 with a Pearson's correlation coefficient p < 0.01. © 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). | URI: | http://hdl.handle.net/10261/74004 | DOI: | 10.1117/1.JBO.17.11.117001 | Identificadores: | doi: 10.1117/1.JBO.17.11.117001 issn: 1083-3668 |
Aparece en las colecciones: | (CFMAC-IO) Artículos |
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