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dc.contributor.authorCugmas, Blaž
dc.contributor.authorSpīgulis, Jānis
dc.date.accessioned2018-05-24T11:05:22Z
dc.date.available2018-05-24T11:05:22Z
dc.date.issued2018-02-20
dc.identifier.citationBlaž Cugmas, Janis Spigulis, "Challenges in automated estimation of capillary refill time in dogs", Proc. SPIE 10501, Optical Diagnostics and Sensing XVIII: Toward Point-of-Care Diagnostics, 1050117 (20 February 2018); doi: 10.1117/12.2284794en_US
dc.identifier.urihttps://dspace.lu.lv/dspace/handle/7/38381
dc.description.abstractCapillary refill time (CRT) is a part of the cardiorespiratory examination in dogs. Changes in CRT can reflect pathological conditions like shock or anemia. Visual CRT estimation has low repeatability; therefore, optical systems for automated estimation have recently appeared. Since existing systems are unsuitable for use in dogs, we designed a simple, small and portable device, which could be easily used at veterinary clinic. The device was preliminarily tested on several measurement sites in two dogs. Not all measurement sites were suitable for CRT measurements due to underlying tissue optical and mechanical properties. The CRT measurements were possible on the labial mucosa, above the sternum and on the digit where CRT was in the range of values, retrieved from the color video of the visual CRT measurement. It seems that light penetration predominantly governs tissue optical response when the pressure is applied. Therefore, it is important to select a proper light, which reaches only superficial capillaries and does not penetrate deeper. Blue or green light is probably suitable for light skin or mucosa, on the other hand, red or near-infrared might be used for skin with pigmented or thick epidermis. Additionally, further improvements of the device design are considered, like adding a calibrated spring, which would insure application of consistent pressure.en_US
dc.language.isoengen_US
dc.publisherSPIEen_US
dc.relationEU_MSCA_IF_DogSpec_745396en_US
dc.relation.ispartofProceedings of SPIE; vol. 10501
dc.rightsinfo:eu-repo/semantics/restrictedAccessen_US
dc.subjectCapillary refill time, veterinary medicine, dogs, monitoring, pulse oximeter, photoplethysmographyen_US
dc.subjectResearch Subject Categories::NATURAL SCIENCES::Physicsen_US
dc.subjectResearch Subject Categories::VETERINARY MEDICINEen_US
dc.subjectCapillary refill timeen_US
dc.subjectDogsen_US
dc.subjectmonitoringen_US
dc.subjectpulse oximeteren_US
dc.subjectphotoplethysmographyen_US
dc.titleChallenges in automated estimation of capillary refill time in dogsen_US
dc.typeinfo:eu-repo/semantics/conferenceObjecten_US
dc.identifier.doi10.1117/12.2284794


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