Contactless mapping of rhythmical phenomena in tissue perfusion using PPGI

Markus Huelsbusch; Vladimir Blazek

doi:10.1117/12.463573

24 April 2002 Contactless mapping of rhythmical phenomena in tissue perfusion using PPGI

Markus Huelsbusch, Vladimir Blazek

Proceedings Volume 4683, Medical Imaging 2002: Physiology and Function from Multidimensional Images; (2002) https://doi.org/10.1117/12.463573
Event: Medical Imaging 2002, 2002, San Diego, California, United States

Abstract

This paper presents the experimental setup and preliminary results of a near infrared CCD camera based Photoplethysmography Imaging (PPGI) system, which has been shown to be suitable for contactless and spatially resolved assessment of rhythmical blood volume changes in the skin. To visualize the complex rhythmical patterns in the dermal perfusion the Wavelet Transform is utilized. It is able to jointly assess time and frequency behavior of signals and thus allows to analyze instationary oscillations and variabilities in the different human rhythmics. The presented system is expected to provide new insights into the functional sequences of physiological tissue perfusion as well as of the perfusion status in ulcer formation and wound healing.

Citation Download Citation

Markus Huelsbusch and Vladimir Blazek "Contactless mapping of rhythmical phenomena in tissue perfusion using PPGI", Proc. SPIE 4683, Medical Imaging 2002: Physiology and Function from Multidimensional Images, (24 April 2002); https://doi.org/10.1117/12.463573

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