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Proceedings Paper

Photoplethysmography imaging: a new noninvasive and noncontact method for mapping of the dermal perfusion changes
Author(s): Ting Wu; Vladimir Blazek; Hans Juergen Schmitt
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Paper Abstract

This paper presents the experimental setup and preliminary results of a CCD based Photoplethysmographic Imager (PPGI) which has been shown to be capable to assess various disorders of the peripheral venous system by standard test methods derived from the classical photophethysmographic practice in a noninvasive and non-contact way. The PPGI is a computer- based CCD imaging system to visualize the skin vessels and analyze the local changes of dermal blood volume. Our results show that this system performs as well as the currently available commercial PPG system by adding information of spatial distribution which allows the investigation of locations and causes of vascular disorders. Both the venous hemodynamics and arterial perfusion can be mapped in two dimensions.

Paper Details

Date Published: 22 November 2000
PDF: 9 pages
Proc. SPIE 4163, Optical Techniques and Instrumentation for the Measurement of Blood Composition, Structure, and Dynamics, (22 November 2000); doi: 10.1117/12.407646
Show Author Affiliations
Ting Wu, Rheinisch-Westfalische Technische Hochschule Aachen (Germany)
Vladimir Blazek, Rheinisch-Westfalische Technische Hochschule Aachen (Germany)
Hans Juergen Schmitt, Rheinisch-Westfalische Technische Hochschule Aachen (Germany)


Published in SPIE Proceedings Vol. 4163:
Optical Techniques and Instrumentation for the Measurement of Blood Composition, Structure, and Dynamics
Alexander V. Priezzhev; P. Ake Oberg, Editor(s)

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