Document Detail

Non-invasive measurement of systolic blood pressure on the arm utilising photoplethysmography: development of the methodology.
MedLine Citation:
PMID:  15742731     Owner:  NLM     Status:  MEDLINE    
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.
C Laurent; B Jönsson; M Vegfors; L G Lindberg
Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Medical & biological engineering & computing     Volume:  43     ISSN:  0140-0118     ISO Abbreviation:  Med Biol Eng Comput     Publication Date:  2005 Jan 
Date Detail:
Created Date:  2005-03-03     Completed Date:  2005-07-18     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7704869     Medline TA:  Med Biol Eng Comput     Country:  England    
Other Details:
Languages:  eng     Pagination:  131-5     Citation Subset:  IM    
Department of Biomedical Engineering, Linköpings universitet, Sweden.
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MeSH Terms
Arm / blood supply*
Blood Pressure Determination / instrumentation,  methods
Electronics, Medical
Intensive Care / methods
Monitoring, Physiologic / methods
Photoplethysmography / instrumentation,  methods*

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