Ambiguity of mapping the relative phase of blood pulsations

被引：21

作者：

Teplov, Victor ^{[1
]}

Nippolainen, Ervin ^{[1
]}

Makarenko, Alexander A. ^{[2
]}

Giniatullin, Rashid ^{[3
,4
]}

Kamshilin, Alexei A. ^{[1
]}

机构：

[1] Univ Eastern Finland, Dept Appl Phys, Kuopio 70210, Finland

[2] Univ Informat Technol Mech & Opt, St Petersburg 197101, Russia

[3] Univ Eastern Finland, Dept Neurobiol, Kuopio 70210, Finland

[4] Kazan Fed Univ, Neurobiol Lab, Kazan 420008, Russia

来源：

BIOMEDICAL OPTICS EXPRESS | 2014年 / 5卷 / 09期

关键词：

HEART-RATE-VARIABILITY; PHOTOPLETHYSMOGRAPHIC SIGNAL; WAVELENGTH; FINGER; RATES; LIGHT;

D O I：

10.1364/BOE.5.003123

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

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. (C) 2014 Optical Society of America

引用

页码：3123 / 3139

页数：17

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