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Non-invasive monitoring of systolic blood preassure on arm utilizing photoplethysmography (PPG)
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- Laurent, Claes, 1958- (author)
- Linköpings universitet,Tekniska högskolan,Fysiologisk mätteknik
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- Jönsson, Björn, 1951- (author)
- Östergötlands Läns Landsting,Linköpings universitet,Hälsouniversitetet,Kärlkirurgi,Thorax-kärlkliniken
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- Vegfors, Magnus, 1953- (author)
- Östergötlands Läns Landsting,Linköpings universitet,Hälsouniversitetet,Anestesiologi,Anestesi- och intensivvårdskliniken VIN
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- (creator_code:org_t)
- Springer-Verlag, 2000
- 2000
- English.
- In: World Congress of Medical Physics and Biomedical Engineering,2000. - : Springer-Verlag. ; , s. 131-135
- Conference paper (peer-reviewed)
Abstract
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- Photoplethysmography (PPG) can be used to measure systolic blood pressure at the brachial artery. With a specially designed probe, positioned in the most distal position beneath a pressure cuff on the upper arm, this is possible. The distance between the light source (880 nm) and the photodetector was 20 mm. A test was performed on neuro-intensive care patients by determining blood pressure from the PPG curves, and, when it was compared with systolic blood pressure obtained from inserted indwelling arterial catheters, a correlation factor of r=0.95 was achieved. The difference between blood pressure obtained using PPG and invasive blood pressure measurement was 3.9±9.1 mmHg (mean±SD), n=19. The depth to the brachial artery was 13.9±4.1 mm (mean±SD), n=18. A digital PPG system utilising pulsating light was also developed.
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- MEDICINE
- MEDICIN
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