6533b83afe1ef96bd12a789a

RESEARCH PRODUCT

Remote photoplethysmography for assessment of oral mucosa

Uldis RubinsRobert Andrianirina MuckleAndris RozeAndris GrabovskisZbignevs MarcinkevicsIeva Henkuzena

subject

Dental anesthesiaLight sourcemedicine.anatomical_structureInfiltration anesthesiabusiness.industryPhotoplethysmogrammedicineOral mucosaLaser Doppler velocimetrybusinessPerfusionMicrocirculationBiomedical engineering

description

The present study is devoted to the assessment of oral mucosa perfusion using remote photoplethysmography (rPPG) technique. The alterations of mucosal perfusion were evoked by regional infiltration anesthesia containing adrenaline. Simple rPPG setup comprising white LED light source, video camera and narrowband optical filter (CWL=540nm), are able to detect subtle microcirculation changes in gingiva. Results demonstrate substantial decrease of rPPG waveform amplitude and subsequently perfusion index in affected gingiva region, following administration of anesthetics. The present study emphasizes clinical advantages of remote photoplethysmography and perfusion index mapping as a simple and cost-effective technique for assessment of oral mucosa function.

https://doi.org/10.1117/12.2526979