Optical coherence tomography angiography as a novel approach to contactless evaluation of sublingual microcirculation
| Autor: | Pieter Nelis, Tim-Gerald Kampmeier, Maged Alnawaiseh, Philip-Helge Arnemann, Christian Ertmer, Christina Schmidt, Florian Lehmann, Sebastian Rehberg, Alexandros Rovas, Michael Hessler |
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| Přispěvatelé: | Ophtalmology - Eye surgery, Faculty of Medicine and Pharmacy |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Sublingual microcirculation
Flow density lcsh:Medicine Article 03 medical and health sciences 0302 clinical medicine Daily practice Diagnosis Healthy volunteers Medicine lcsh:Science Author Correction Multidisciplinary business.industry lcsh:R Limits of agreement 030208 emergency & critical care medicine Gold standard (test) Optical coherence tomography angiography Translational research Critical illness Three-dimensional imaging 030221 ophthalmology & optometry lcsh:Q business Nuclear medicine |
| Zdroj: | Scientific Reports Scientific Reports, Vol 10, Iss 1, Pp 1-10 (2020) |
| Popis: | Microcirculatory disorders are crucial in pathophysiology of organ dysfunction in critical illness. Evaluation of sublingual microcirculation is not routinely conducted in daily practice due to time-consuming analysis and susceptibility to artifacts. We investigated the suitability of optical coherence tomography angiography (OCTA) for contactless evaluation of sublingual microcirculation. Sublingual microcirculation was imaged in 10 healthy volunteers, using an OCTA device and an incident dark field (IDF) illumination microscopy (current gold standard). OCTA images were analyzed with regard to flow density and perfused vessel density (PVDbyOCTA). IDF videos were analyzed following current recommendations. Flow density was automatically extracted from OCTA images (whole en face 48.9% [43.2; 54.5]; central ring 52.6% [43.6; 60.6]). PVDbyOCTA did not differ from the PVD calculated from IDF videos (PVDbyOCTA 18.6 mm/mm² [18.0; 21.7]) vs. PVDbyIDF 21.0 mm/mm² [17.5; 22.9]; p = 0.430). Analysis according to Bland-Altman revealed a mean bias of 0.95 mm/mm² (95% Confidence interval −1.34 to 3.25) between PVDbyOCTA and PVDbyIDF with limits of agreement of −5.34 to 7.24 mm/mm². This study is the first to demonstrate the suitability of OCTA for evaluating sublingual microcirculation. Comparison of the perfused vessel density between methods showed a plausible level of agreement. |
| Databáze: | OpenAIRE |
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