31 May 2000 Near-infrared CCD imaging: possibilities for noninvasive and contactless 2D mapping of dermal venous hemodynamics
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Proceedings Volume 3923, Optical Diagnostics of Biological Fluids V; (2000) https://doi.org/10.1117/12.387124
Event: BiOS 2000 The International Symposium on Biomedical Optics, 2000, San Jose, CA, United States
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.
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Vladimir Blazek, Vladimir Blazek, Ting Wu, Ting Wu, Dominik Hoelscher, Dominik Hoelscher, } "Near-infrared CCD imaging: possibilities for noninvasive and contactless 2D mapping of dermal venous hemodynamics", Proc. SPIE 3923, Optical Diagnostics of Biological Fluids V, (31 May 2000); doi: 10.1117/12.387124; https://doi.org/10.1117/12.387124
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