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Proceedings Paper

Near-infrared CCD imaging: possibilities for noninvasive and contactless 2D mapping of dermal venous hemodynamics
Author(s): Vladimir Blazek; Ting Wu; Dominik Hoelscher
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Paper Abstract

This paper presents the experimental setup and first results of a near infrared CCD based Photoplethysmographic Imager (PPGI) which has been shown to be suitable for contactless assessing various disorders of the peripheral venous system by standard test methods derived from the classical photoplethysmographic practice. The PPGI is a computer-based CCD near-infrared imaging system to visualize the skin vessels and analyze the local changes in dermal blood volume. Our current results show that this system performs as well as the available commercial PPG system by adding information of spatial distribution which allows the investigation of locations and causes of vascular disorders.

Paper Details

Date Published: 31 May 2000
PDF: 8 pages
Proc. SPIE 3923, Optical Diagnostics of Biological Fluids V, (31 May 2000); doi: 10.1117/12.387124
Show Author Affiliations
Vladimir Blazek, Institute of High Frequency Technology/Technical Univ. Aachen (Germany)
Ting Wu, Institute of High Frequency Technology/Technical Univ. Aachen (Germany)
Dominik Hoelscher, Institute of High Frequency Technology/Techical Univ. Aachen (Germany)


Published in SPIE Proceedings Vol. 3923:
Optical Diagnostics of Biological Fluids V
Alexander V. Priezzhev; Toshimitsu Asakura, Editor(s)

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