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
Electronics
Industrial Innovation
Blood oxygenations
Human blood
In-vitro
Oxygen saturation levels
Pulse oximeters
Reproducibility
Blood gas analysis
Cameras
Cardiology
Electronic medical equipment
Laboratories
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