Work

Ambiguity of mapping the relative phase of blood pulsations

Year: 2014

Type: article

Abstract: Blood pulsation imaging (BPI) is a non-invasive optical method based on photoplethysmography (PPG). It is used for the visualization of changes in the spatial distribution of blood in the microvascular bed. BPI specifically allows measurements of the relative phase of blood pulsations and using it we detected a novel type of PPG fast waveforms, which were observable in limited areas with asynchronous regional blood supply. In all subjects studied, these fast waveforms coexisted with traditional slow waveforms of PPG. We are therefore presenting a novel lock-in image processing technique of blood pulsation imaging, which can be used for detailed temporal characterization of peripheral microcirculation.

Source: Biomedical Optics Express

DOI: 10.1364/boe.5.003123

Authors: Victor Teplov, Ervin Nippolainen, Alexander A. Makarenko, Rashid Giniatullin, Alexei A. Kamshilin

Institutions: University of Eastern Finland, ITMO University, Kazan Federal University

Language: English

Topic: Non-Invasive Vital Sign Monitoring

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $1,913