Results 1 to 10 of about 2,711 (123)

Wide-Field OCT Angiography at 400 KHz Utilizing Spectral Splitting

Photonics, 2014
Optical angiography systems based on optical coherence tomography (OCT) require dense sampling in order to maintain good vascular contrast. We demonstrate a way to gain acquisition speed and spatial sampling by using spectral splitting with a swept ...
Laurin Ginner, Cedric Blatter, Tilman Schmoll   +2 more
exaly   +3 more sources

Oct Angiography: The Basics

Delhi Journal of Ophthalmology, 2021
OCT angiography is a new imaging technology that provides volumetric analysis of retina, choroid, and optic nerve. It helps to delineate early hemodynamic alteration in the vasculature of retina and choroid.
Khushboo Chawla
doaj   +1 more source

A diagnostic assessment of angioarchitectonics of choroidal melanoma

Российский офтальмологический журнал, 2021
Purpose: to study angioarchitectonics of choroidal melanoma with varied biometric characteristics by comparing the results of indocyanine green angiography (IAG) and OCT angiography (OCTA).Material and methods.
I. E. Panova, E. V. Samkovich, P. A. Nechiporenko, N. N. Grigoryeva   +3 more
doaj   +1 more source

Swept source intraoperative OCT angiography

Journal of Innovative Optical Health Sciences, 2021
To accurately guide surgical instruments during ophthalmic procedures, some necessary intraoperative depth perception is required, which standard surgical microscopes supply limitedly. Intraoperative optical coherence tomography (iOCT), combining optical
Ziyi Zhang, Tiepei Zhu, Tongtong Cao, Zhaoyu Gong, Lin Yao, Kaiyuan Liu, Juan Ye, Peng Li   +7 more
doaj   +1 more source

Automatic Coregistration Between Coronary Angiography and Intravascular Optical Coherence Tomography

JACC: Asia, 2021
This study sought to evaluate a novel approach for automatic coregistration of optical coherence tomography (OCT) and coronary angiography. Lumen diameters and side branches from both coronary angiography and OCT were used to create 2 feature sets ...
Hui Qin, MSc, Chunming Li, BSc, Yingguang Li, PhD, Jiayue Huang, MSc, Fan Yang, BSc, Takashi Kubo, MD, PhD, Takashi Akasaka, MD, PhD, Changyan Xiao, PhD, Juan Luis Gutiérrez-Chico, MD, PhD, Shengxian Tu, PhD   +9 more
doaj   +1 more source

Contribution of swept-source OCT-angiography in analysis of choroidal osteoma and its quiescent neovascular complications: A case study

American Journal of Ophthalmology Case Reports, 2020
Purpose: Choroidal osteoma (CO) is a rare benign tumor of the choroid. Improvements in Optical Coherence Tomography (OCT) technologies, notably swept-source (SS), enables a better visualization of the choroid with deeper signal penetration in the tissues.
Hussam El Chehab, Corinne Dot, Thibaud Mathis, Emilie Agard, Laurent Kodjikian   +4 more
doaj   +1 more source

Non-Invasive Diagnosis of Polypoidal Choroidal Vasculopathy as a Variant of the Course of Age-Related Macular Degeneration

Oftalʹmologiâ, 2018
Purpose: to study noninvasive diagnostic options for polypoidal choroidal vasculopathy (PCV) — a subtype of neovascular agerelated macular degeneration — by monitoring clinical progression, defining optical coherence tomography (OCT) findings specific ...
I. E. Panova, T. B. Shaimov, V. A. Shaimova   +2 more
doaj   +1 more source

En-face OCT and OCT angiography analysis of macular choroidal macrovessel

American Journal of Ophthalmology Case Reports, 2021
Purpose: To analyze en-face optical coherence tomography (OCT) and decorrelation signals on OCT angiography (OCTA) in two cases of macular choroidal macrovessel (MCM). Observations: Case report.
Carlos A. Moreira-Neto, Luiz H. Lima, Claudio Zett, Raphael Pereira, Carlos Moreira, Jr.   +4 more
doaj   +1 more source

Optical coherence tomography angiography in optic nerve sheath meningioma

Interdisciplinary Neurosurgery, 2019
This study describes Spectral Domain-Optical Coherence Tomography (SD-OCT) and Optical Coherence Tomography Angiography (OCTA) features of Optic Nerve Sheath Meningioma (ONSM).A 22-year-old woman, diagnosed with meningioma encircling the right optic ...
Gilda Cennamo, MD, Daniela Montorio, MD, Domenico Solari, MD, Luca D'Andrea, MD, Vincenzo Brescia Morra, MD, Fausto Tranfa, MD   +5 more
doaj   +1 more source

Cilioretinal Artery Occlusion Combined with Central Retinal Vein Occlusion: What Is the Best Imaging Modality for the Follow-Up?

Case Reports in Ophthalmological Medicine, 2017
We report retinal structural changes of a 37-year-old man diagnosed with the concomitant occlusion of cilioretinal artery and central retinal vein. Comprehensive ophthalmological evaluation was performed, followed by spectral-domain optical coherence ...
Mahmut Kaya, Taylan Ozturk, Ziya Ayhan, Nilufer Kocak, Suleyman Kaynak   +4 more
doaj   +1 more source