6533b7d0fe1ef96bd125abd3

RESEARCH PRODUCT

<title>Photonic vascular diagnostics by four-channel photoplethysmography</title>

Renars ErtsJānis SpīgulisIndulis Kukulis

subject

Clinical testsChannel (digital image)business.industryOptical engineeringInterface (computing)educationSignalPhotoplethysmogramOcclusionMedicinePhotonicsbusinessTelecommunicationsBiomedical engineering

description

A four-channel photoplethysmography device was designed and built at University of Latvia to detect signals from different body parts and to analyze the signal shapes. The device consists of optical contact probes, interface, and a standard PC. Clinical tests were performed with occlusion patients having vascular problems at arm or leg arteries. Results showed significant difference in the pulse wave transit time in occluded and nonoccluded part of the body.© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

https://doi.org/10.1117/12.639334