Clinical applications of optical coherence tomography angiography

VernacularTitle:认识光相干断层扫描血管成像技术特色，提升光相干断层扫描血管成像技术临床应用水平
Author: Xiaoxin LI ; Xuan SHI
Keywords: Retinal diseases/diagnosis; Choroid diseases/diagnosis; Tomography,optical coherence; Editorial
From: Chinese Journal of Ocular Fundus Diseases 2017;33(1):3-6
CountryChina
Language:Chinese
Abstract: Optic coherence tomography (OCT) is one of the most rapid developing technologies in ophthalmology. OCT angiography (OCTA) has been made possible by the development of even faster scanning and sampling techniques, which is the next milestone after stratus OCT and spectral domain OCT. Without the need of injection of the contrast agent, OCTA is capable of providing a three-dimensional reconstruction of the perfused microvasculature within the retina and choroid by detecting the motion of scattering particles such as erythrocytes within sequential OCT cross-sectional scans performed repeatedly at the same location of the eye with different analysis algorithms. Comparing to fundus fluorescein angiography and indocyanine green angiography, with improved OCT technology and understanding, OCTA has showed certain advantages to diagnose retinal and choroidal diseases, especially macular vascular diseases. It is important to establish the contributions that OCTA can make to diagnosing, managing and understanding of ocular fundus diseases.