6533b85cfe1ef96bd12bc7a9

RESEARCH PRODUCT

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

Oskars RubenisUldis RubinsA. MiscuksRenars ErtsAndris Grabovskis

subject

Local anestheticmedicine.drug_classRegional anesthesiabusiness.industryRemote patient monitoringPhotoplethysmogramAnesthesiamedicinePlethysmographBlood flowbusinessBiomedical engineering

description

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.

yearjournalcountryeditionlanguage
2010-10-012010 3rd International Conference on Biomedical Engineering and Informatics
https://doi.org/10.1109/bmei.2010.5640023