Non-invasive measurement of systolic blood pressure on the arm utilising photoplethysmography: development of the methodology

Non-invasive measurement of systolic blood pressure on the arm utilising photoplethysmography : development of the methodology

Laurent, Claes, 1958- (författare): Linköpings universitet,Fysiologisk mätteknik,Tekniska högskolan

Jönsson, Björn, 1951- (författare): Östergötlands Läns Landsting,Linköpings universitet,Kärlkirurgi,Thorax-kärlkliniken,Hälsouniversitetet

Vegfors, Magnus, 1953- (författare): Östergötlands Läns Landsting,Linköpings universitet,Anestesiologi,Anestesi- och intensivvårdskliniken VIN,Hälsouniversitetet

Lindberg, Lars-Göran, 1951- (författare): Linköpings universitet,Fysiologisk mätteknik,Tekniska högskolan

(creator_code:org_t)

2005
2005
Engelska.
Ingår i: Medical and Biological Engineering and Computing. - 0140-0118 .- 1741-0444. ; 43:1, s. 131-135

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Abstract Ämnesord

Stäng

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.

Av författaren/redakt...: Laurent, Claes, ...; Jönsson, Björn, ...; Vegfors, Magnus, ...; Lindberg, Lars-G ...

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