Toe pressure determination by audiophotoplethysmography

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Presentation transcript:

Toe pressure determination by audiophotoplethysmography A. Fronek, MD, PhD, V. Blazek, PhD, B. Curran, RN Journal of Vascular Surgery Volume 20, Issue 2, Pages 267-270 (August 1994) DOI: 10.1016/0741-5214(94)90015-9 Copyright © 1994 Society for Vascular Surgery and the North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

Fig. 1 Block diagram of audio-photoplethysmograph (A-PPG). For additional details see text. Journal of Vascular Surgery 1994 20, 267-270DOI: (10.1016/0741-5214(94)90015-9) Copyright © 1994 Society for Vascular Surgery and the North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

Fig. 2 Comparison of toe pressure determined with both methods. PPG, Standard photo-plethysmograph requiring recorder; A-PPG, audio-photoplethysmography in normal control group and in group of patients with peripheral arterial occlusive disease. Journal of Vascular Surgery 1994 20, 267-270DOI: (10.1016/0741-5214(94)90015-9) Copyright © 1994 Society for Vascular Surgery and the North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

Fig. 3 Correlation scattergram comparing individual results obtained with both methods (photoplethysmograph with recorder and audio-photoplethysmograph). Journal of Vascular Surgery 1994 20, 267-270DOI: (10.1016/0741-5214(94)90015-9) Copyright © 1994 Society for Vascular Surgery and the North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions