En Face Imaging of Geographic Atrophy Using Different Swept-Source OCT Scan Patterns

2019 ◽  
Vol 3 (2) ◽  
pp. 122-132 ◽  
Author(s):  
Marie Thulliez ◽  
Elie H. Motulsky ◽  
William Feuer ◽  
Giovanni Gregori ◽  
Philip J. Rosenfeld
Keyword(s):  
Geographic Atrophy ◽  
Swept Source ◽  
En Face ◽  
Swept Source Oct ◽  
En Face Imaging

Persistent Hyper-Transmission Defects Detected on En Face Swept Source OCT Images Predict the Formation of Geographic Atrophy in AMD

2021 ◽  
Author(s):  
Rita Laiginhas ◽  
Yingying Shi ◽  
Mengxi Shen ◽  
Xiaoshuang Jiang ◽  
William Feuer ◽  
...  
Keyword(s):  
Geographic Atrophy ◽  
Swept Source ◽  
En Face ◽  
Swept Source Oct

Swept-Source OCT En Face Imaging of Paravascular Inner Retinal Defects

2021 ◽  
Vol 52 (7) ◽  
pp. 407-411
Author(s):  
Xiaoshuang Jiang ◽  
Mengxi Shen ◽  
Giovanni Gregori ◽  
Philip J. Rosenfeld
Keyword(s):  
Swept Source ◽  
En Face ◽  
Swept Source Oct ◽  
En Face Imaging

scholarly journals Imaging the Deep Choroidal Vasculature Using Spectral Domain and Swept Source Optical Coherence Tomography Angiography

2018 ◽  
Vol 2 (3) ◽  
pp. 146-154 ◽  
Author(s):  
J. Daniel Diaz ◽  
Jay C. Wang ◽  
Patrick Oellers ◽  
Inês Lains ◽  
Lucia Sobrin ◽  
...  
Keyword(s):  
Blood Flow ◽  
Optical Coherence Tomography Angiography ◽  
Choroidal Blood Flow ◽  
Swept Source ◽  
Blood Flow Signal ◽  
En Face ◽  
Rpe Atrophy ◽  
Choroidal Vasculature ◽  
Choroidal Vessels ◽  
En Face Imaging

Purpose: To evaluate the deeper choroidal vasculature in eyes with various ocular disorders using spectral domain (SD) optical coherence tomography angiography (OCTA) and swept source (SS) OCTA. Methods: Patients underwent OCTA imaging with either SD-OCTA (Zeiss Cirrus Angioplex or Optovue AngioVue) or SS-OCTA (Topcon Triton). Retinal pigment epithelium (RPE) integrity, structural visualization of deep choroidal vessels on en face imaging, and OCTA of deep choroidal blood flow signal were analyzed. Choroidal blood flow was deemed present if deeper choroidal vessels appeared bright after appropriate segmentation. Results: Structural visualization of choroidal vessels was feasible in all eyes by en face imaging. In both SD-OCTA and SS-OCTA, choroidal blood flow signal was present in all eyes with overlying RPE atrophy (100% of eyes with RPE atrophy, 28.6% of all imaged eyes, P < .001). Conclusions: While choroidal vessels can be visualized anatomically in all eyes by en face imaging, choroidal blood flow detection in deep choroidal vessel is largely restricted to areas with overlying RPE atrophy. Intact RPE acts as a barrier for reliable detection of choroidal flow using current OCTA technology, inhibiting evaluation of flow in deeper choroidal vessels in most eyes.

Quantifying Choriocapillaris Flow Voids in Patients With Geographic Atrophy Using Swept-Source OCT Angiography

2019 ◽  
Vol 50 (9) ◽  
pp. e229-e235 ◽  
Author(s):  
Nicholas T. Rinella ◽  
Hao Zhou ◽  
Qinqin Zhang ◽  
Cathrine Keiner ◽  
Catherine E. Oldenburg ◽  
...  
Keyword(s):  
Geographic Atrophy ◽  
Oct Angiography ◽  
Swept Source ◽  
Swept Source Oct ◽  
Swept Source Oct Angiography

scholarly journals Swept Source Optical Coherence Tomography Assessment of Bursa Premacularis in Healthy Eyes

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Paolo Carpineto ◽  
Rossella D’Aloisio ◽  
Daniele Guarini ◽  
Carla Iafigliola ◽  
Luca Cerino ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Intraclass Correlation ◽  
Optical Coherence ◽  
High Definition ◽  
Swept Source ◽  
Visualization Software ◽  
En Face ◽  
Bursa Premacularis ◽  
Youth Population ◽  
En Face Imaging

Purpose. To describe the reliability and the limits of bursa premacularis (BPM) evaluation using a swept source optical coherence tomography (SS-OCT) device with enface and 16 mm-high definition (HD) longitudinal scans. Methods. 60 eyes of 60 subjects were enrolled and imaged with SS-OCT system (PLEX Elite 9000, Carl Zeiss Meditec Inc., Dublin, CA, USA). BPM area was measured using enface scans imported to ImageJ. HD horizontal and vertical longitudinal scans centered at the fovea were used to detect width (W) and central thickness (CT) of BPM at baseline (T0) and after 30 minutes (T30) performed by two different observers. An enhanced vitreous visualization software provided by the manufacturer of the device was used to highlight vitreous structures. Results. BPM was identifiable in 100% of eyes using both horizontal and vertical longitudinal scans. On horizontal scan, BPM was not entirely measurable in 21.7% and in 18.3% of cases at T0 and T30, respectively. On vertical scan, BPM was not entirely measurable in 75.0% and in 81.7% at T0 and T30, respectively. No statistically significant differences were found between the two different time measurements with an intraclass correlation coefficient above 70%. Median BPM area was 26.9 (Q1-Q3: 19.5-40.5) mm2. In en face imaging, the most frequent BPM shape was the boat one. Conclusion. SS-OCT is a reliable tool for a detailed quantification and mapping of BPM, and it is able to add useful details about the morphological BPM features in youth population. However, the enhanced visualization of the vitreous structures is still a challenge, also with the most forefront devices.

Correlations between Choriocapillaris Flow Deficits around Geographic Atrophy and Enlargement Rates Based on Swept-Source OCT Imaging

2019 ◽  
Vol 3 (6) ◽  
pp. 478-488 ◽  
Author(s):  
Marie Thulliez ◽  
Qinqin Zhang ◽  
Yingying Shi ◽  
Hao Zhou ◽  
Zhongdi Chu ◽  
...  
Keyword(s):  
Geographic Atrophy ◽  
Swept Source ◽  
Swept Source Oct ◽  
Oct Imaging

En Face Swept Source OCT Study of Neovascular Age-Related Macular Degeneration

2017 ◽  
pp. 49-56
Author(s):  
Ignacio Flores-Moreno ◽  
Luis Arias-Barquet ◽  
Jorge Ruiz-Medrano ◽  
José M. Ruiz-Moreno ◽  
Josep M. Caminal
Keyword(s):  
Macular Degeneration ◽  
Age Related Macular Degeneration ◽  
Swept Source ◽  
Age Related ◽  
En Face ◽  
Swept Source Oct

Comparison between Widefield En Face Swept-Source OCT and Conventional Multimodal Imaging for the Detection of Reticular Pseudodrusen

Ophthalmology ◽  
2017 ◽  
Vol 124 (2) ◽  
pp. 205-214 ◽  
Author(s):  
Karen B. Schaal ◽  
Andrew D. Legarreta ◽  
William J. Feuer ◽  
Giovanni Gregori ◽  
Qianqian Cheng ◽  
...  
Keyword(s):  
Multimodal Imaging ◽  
Swept Source ◽  
Reticular Pseudodrusen ◽  
En Face ◽  
Swept Source Oct
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