The analysis of blood flow changes under local anesthetic input using non-contact technique

Author

Rubins, U. ; Miscuks, A. ; Rubenis, O. ; Erts, R. ; Grabovskis, A.

Author_Institution

Inst. of Atomic Phys. & Spectrosc., Univ. of Latvia, Riga, Latvia

Volume

2

fYear

2010

fDate

16-18 Oct. 2010

Firstpage

601

Lastpage

604

Abstract

In this work photoplethysmography imaging (PPGI) technique was used to obtain blood flow changes in human skin under regional anesthesia (RA). PPGI was evaluated from video taken by video camera for 26 patients 2 minutes before and immediately after RA, using custom developed software. Results showed that blood flow obtained by PPGI increases immediately after RA effect and the amplitude of PPGI showed correlation with temperature changes in human skin (r=0.8±0.14, p<;;0.0001). We found that PPGI technique can be usable for non-contact monitoring of quality of RA.

Keywords

biomedical optical imaging; blood flow measurement; medical diagnostic computing; medical signal processing; patient monitoring; plethysmography; skin; video signal processing; blood flow analysis; human skin; local anesthetic input; noncontact monitoring technique; photoplethysmography imaging; temperature variation; video camera; Blood; Cameras; Skin; Software; Streaming media; Temperature measurement; PPGI; non-contact photoplethysmography; photoplethysmography imaging; regional anesthesia; skin blood perfusion;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Engineering and Informatics (BMEI), 2010 3rd International Conference on

Conference_Location

Yantai

Print_ISBN

978-1-4244-6495-1

Type

conf

DOI

10.1109/BMEI.2010.5640023

Filename

5640023