Photoplethysmography imaging: A new noninvasive and non-contact method for mapping of the dermal perfusion changes

被引：108

作者：

Wu, T ^{[1
]}

Blazek, V ^{[1
]}

Schmitt, HJ ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Inst High Frequency Technol, D-52056 Aachen, Germany

来源：

OPTICAL TECHNIQUES AND INSTRUMENTATION FOR THE MEASUREMENT OF BLOOD COMPOSITION, STRUCTURE AND DYNAMICS | 2000年 / 4163卷

关键词：

Photoplethysmographic Imager (PPGI); CCD imaging; peripheral hemodynamics; skin vessel structure; dermal perfusion;

D O I：

10.1117/12.407646

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

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 photoplethysmographic 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 dimension.

引用

页码：62 / 70

页数：9

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