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1 April 2020 In vivo study of vulvar mucosa microcirculation in norm and diseases
Marina A. Sirotkina, Arseniy L. Potapov, Naylya N. Vagapova, Ivan K. Safonov, Maria M. Karabut, Irina A. Kuznetsova, Dmitry A. Karashtin, Lev A. Matveev, Stefka G. Radenska-Lopovok, Anna A. Timakova, Elena V. Zagaynova, Natalia D. Gladkova
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Proceedings Volume 11362, Clinical Biophotonics; 1136205 (2020) https://doi.org/10.1117/12.2555366
Event: SPIE Photonics Europe, 2020, Online Only
Abstract
The purpose of the study was in vivo assessment of the vulvar blood and lymphatic vessels characteristics in norm and lichen sclerosus by multimodal optical coherence tomography (OCT). The study was performed using a multimodal OCT setup developed at the Institute of Applied Physics RAS (Russia). OCT angiography and OCT lymphangiography are based on the analysis of speckle structure. Visualization of blood and lymph vessels does not require the use of exogenous contrast agents. A histological study of vulvar biopsy samples from two points was carried out for 10 patients without vulvar pathology and 12 patients with lichen sclerosus. 3D OCT data was obtained from six vulvar points in each patient. OCT images were verified by histological examination. It was shown that normally the vulvar mucosa has good blood supply and a well-developed network of lymphatic vessels. In the case of lichen sclerosus, the density of blood vessels in the area of hyalinosis significantly reduced and amounted to 2.5 ± 0.79% versus 3.9 ± 0.23% in norm (p = 0.0003). OCT lymphangiographic images also show a significant decrease in the number of lymphatic vessels, their density was 1.7 ± 0.75% versus 3.7 ± 0.54% in norm (p = 0.02). A direct relationship between the state of the blood and lymph vessels from the condition of the connective tissue of the vulva was shown. The number of blood and lymph vessels is sharply reduced in the area of hyalinosis and sclerosis of collagen fibers.
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Marina A. Sirotkina, Arseniy L. Potapov, Naylya N. Vagapova, Ivan K. Safonov, Maria M. Karabut, Irina A. Kuznetsova, Dmitry A. Karashtin, Lev A. Matveev, Stefka G. Radenska-Lopovok, Anna A. Timakova, Elena V. Zagaynova, and Natalia D. Gladkova "In vivo study of vulvar mucosa microcirculation in norm and diseases", Proc. SPIE 11362, Clinical Biophotonics, 1136205 (1 April 2020); https://doi.org/10.1117/12.2555366
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KEYWORDS
Optical coherence tomography
Lymphatic system
Blood
Blood vessels
In vivo imaging
Angiography
Connective tissue
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