Search results for "Liniment"

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Imaging photoplethysmography for clinical assessment of cutaneous microcirculation at two different depths

2016

The feasibility of bispectral imaging photoplethysmography (iPPG) system for clinical assessment of cutaneous microcirculation at two different depths is proposed. The iPPG system has been developed and evaluated for in vivo conditions during various tests: (1) topical application of vasodilatory liniment on the skin, (2) skin local heating, (3) arterial occlusion, and (4) regional anesthesia. The device has been validated by the measurements of a laser Doppler imager (LDI) as a reference. The hardware comprises four bispectral light sources (530 and 810 nm) for uniform illumination of skin, video camera, and the control unit for triggering of the system. The PPG signals were calculated and…

AdultPathologymedicine.medical_specialtyAdolescentBiomedical EngineeringLinimentHyperemiaCutaneous microcirculation02 engineering and technologyAdministration Cutaneous01 natural sciencesMicrocirculation010309 opticsBiomaterialsYoung AdultPhotoplethysmogram0103 physical sciencesImage Processing Computer-AssistedHumansMedicinePhotoplethysmographySkinbusiness.industryMicrocirculationEquipment DesignLaser Doppler velocimetryHand021001 nanoscience & nanotechnologyArterial occlusionAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materials0210 nano-technologybusinessPerfusionPreclinical imagingAnesthesia LocalBiomedical engineeringJournal of Biomedical Optics
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