Journal article
Optical detection of hemoglobin in pulpal blood
Journal of endodontics, Vol.22(1), pp.19-22
1996
DOI: 10.1016/S0099-2399(96)80230-5
PMID: 8618080
Abstract
An in vitro, flow-through optical system was designed to measure hemoglobin (Hb) concentrations in the pulp space. The system included lightemitting diodes and a silicon photodetector positioned on opposing surfaces of human teeth. A syringe pump allowed a controlled flow of blood through the pulp chamber. The Hb concentration was computed as a nonlinear function of transmitted light intensity. Transmitted light intensities were also used as indicators of oxygenation level. Optical measurements correlated with Hb values measured by the conventional cyanmethemoglobin method (
r = 0.993). The mean percentage error was 5.8%, and the standard error of prediction was 0.77 g/dl for Hb concentrations ranging from 4 to 20 g/dl. Deoxygenated blood exhibited up to 31% lower transmitted intensity. Light transmission through teeth may be useful in the assessment of total Hb and blood oxygenation within the pulp chamber.
Details
- Title: Subtitle
- Optical detection of hemoglobin in pulpal blood
- Creators
- Ana M Diaz-ArnoldMark A ArnoldLisa R Wilcox
- Resource Type
- Journal article
- Publication Details
- Journal of endodontics, Vol.22(1), pp.19-22
- DOI
- 10.1016/S0099-2399(96)80230-5
- PMID
- 8618080
- NLM abbreviation
- J Endod
- ISSN
- 0099-2399
- eISSN
- 1878-3554
- Publisher
- Elsevier Inc
- Language
- English
- Date published
- 1996
- Academic Unit
- Center for Biocatalysis and Bioprocessing; Fraternal Order of Eagles Diabetes Research Center; Family Dentistry; Chemistry
- Record Identifier
- 9984216715502771
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