Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/76832
Title: Transmittance photoplethysmography with near-infrared laser diodes in intra-peritoneal organs
Authors: López-Silva, S. M.
Silveira, J. P.
Dotor, M. L.
Giannetti, R.
Golmayo, D.
Herrera, L.
UNESCO Clasification: 32 Ciencias médicas
Keywords: Endoluminal pulse oximetry
Absorption-spectra
Oxygen-saturation
Colonici ischemia
Hypoperfusion, et al
Issue Date: 2006
Journal: Physiological Measurement 
Abstract: Photoplethysmography and pulse oximetry are techniques based on optical principles, which are widely used in medical practice for non-invasive monitoring. There are some processes which may affect specific organs or parts without a significant repercussion on the information provided non-invasively. Here, we report on the preliminary results obtained by transmittance photoplethysmography in pig intra-peritoneal organs along a surgical intervention, using a measurement system based on two near-infrared laser diodes. Analysis of the signals recorded at 750 nm and 850 nm in the mesentery root, mesocolon, gastric wall and aorta artery has shown the affordability of performing in situ photoplethysmography for visceral perfusion evaluation.
URI: http://hdl.handle.net/10553/76832
ISSN: 0967-3334
DOI: 10.1088/0967-3334/27/10/009
Source: Physiological Measurement [ISSN 0967-3334], v. 27 (10), p. 1033-1045, 2006
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