Measurements of the Capillary Density and Diameter in the Choriocapillaris Using Optical Coherence Tomography Angiography

DOI Web Site 9 References Open Access

Bibliographic Information

Other Title
  • 光干渉断層血管撮影による脈絡膜毛細血管板血管密度と血管径の計測

Search this article

Description

<p>[Purpose] Optical coherence tomography angiography (OCTA) makes it possible to observe the choriocapillaris (CC). However, little is known about the morphology and characteristics of the CC. In this study, we examined the capillary density and diameter in the CC using high-resolution OCTA.</p><p>[Subjects and Methods] Three healthy females with no history of ocular diseases except ametropia were recruited for this study. Average age, refraction, and axial length were 26.7 ± 2.0 year, -1.0 ± 1.0 D, and 24.48 ± 0.95 mm, respectively. Using SPECTRALIS® OCT angiography module, the CC images were taken within 3x3 mm with a focus on the center of the fovea and exported at a range of 20-50 µm from the subretinal pigment epithelial border. After contrast emphasizing processing, the images were binarized using the Otsu method and subsequently we calculated the capillary density corresponding to the vessel area. We also measured the capillary diameter by visual observation.</p><p>[Results] The average capillary density and diameter were 44.5 ± 3.0 % and 23.9 ± 4.9 µm, respectively.</p><p>[Conclusions] As compared to the measurements reported in previous histological studies, the present study obtained a lower capillary density and a larger capillary diameter of the CC.</p>

Journal

References(9)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top