Print Email Facebook Twitter In Vitro demonstration of an SpO2-Camera Title In Vitro demonstration of an SpO2-Camera Author Wieringa, F.P. Mastik, F. Boks, R.H. Visscher, A. Bogers, A. van der Steen, A.F.W. TNO Industrie en Techniek Publication year 2007 Abstract Feasibility of pulse oxigraphy is examined using an in- vitro phantom, perfused with human blood by a heart- lung machine. 29 different oxygen saturation levels, measured with our experimental camera and a clinical pulse oximeter, were matched against laboratory blood gas analysis. Discrete transfer functions between measurements & laboratory values were derived for camera (fCAM-LAB) & pulse oximeter fPulse-lab). 87 additional independent pulse oximeter & camera measurements were subjected to these functions to check reproducibility (R2 = 0.99). To demonstrate imaging capacities, a dual reservoir was applied to image venous and arterial samples from 2 patients. Camera-derived vs laboratory arterial values were: 97.0% vs 99.5% (pat. 1, pH=7.41) & 97.5% vs 99.5% (pat. 2, pH=7.37). Venous resulst were: 86.5% vs 74.4% (pat. 1, pH=7.39) & 89.1% vs 86.2% (pat. 2, pH=7.34). In vitro pulse oxigraphy can visualize regions with different blood oxygenation. Subject ElectronicsIndustrial InnovationBlood oxygenationsHuman bloodIn-vitroOxygen saturation levelsPulse oximetersReproducibilityBlood gas analysisCamerasCardiologyElectronic medical equipmentLaboratories To reference this document use: http://resolver.tudelft.nl/uuid:c1f5cef9-d404-4869-93af-04f56af21eb2 TNO identifier 240500 ISSN 0276-6574 Source Computers in Cardiology 2007, CAR 2007, 30 September - 3 October 2007, Durham, NC, USA, 34, 749-751 Article number No.: 4745594 Document type conference paper Files To receive the publication files, please send an e-mail request to TNO Library.