En-face imaging of epiretinal membrane using swept source optical coherence tomography

2016 ◽  
Vol 94 ◽  
Author(s):  
J.T. Kim ◽  
H. Chung
Keyword(s):  
Optical Coherence Tomography ◽  
Epiretinal Membrane ◽  
Optical Coherence ◽  
Swept Source ◽  
En Face ◽  
En Face Imaging

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.

EN FACE IMAGING OF PACHYCHOROID SPECTRUM DISORDERS WITH SWEPT-SOURCE OPTICAL COHERENCE TOMOGRAPHY

Retina ◽  
2016 ◽  
Vol 36 (3) ◽  
pp. 499-516 ◽  
Author(s):  
Kunal K. Dansingani ◽  
Chandrakumar Balaratnasingam ◽  
Jonathan Naysan ◽  
K. Bailey Freund
Keyword(s):  
Optical Coherence Tomography ◽  
Optical Coherence ◽  
Swept Source ◽  
En Face ◽  
Spectrum Disorders ◽  
En Face Imaging

scholarly journals Optical coherence tomography angiography for the detection of macular neovascularization—comparison of en face versus cross-sectional view

Eye ◽  
2022 ◽  
Author(s):  
Robert Siggel ◽  
Christel Spital ◽  
Anna Lentzsch ◽  
Sandra Liakopoulos
Keyword(s):  
Optical Coherence Tomography ◽  
Sensitivity And Specificity ◽  
Optical Coherence Tomography Angiography ◽  
Optical Coherence ◽  
Cross Sectional ◽  
Swept Source ◽  
Face Images ◽  
En Face ◽  
En Face Imaging ◽  
Subretinal Hyperreflective Material

Abstract Purpose To evaluate sensitivity and specificity of swept source-optical coherence tomography angiography (SS-OCTA) en face images versus cross-sectional OCTA versus a combination of both for the detection of macular neovascularization (MNV). Design Prospective cohort study. Participants Consecutive patients with various chorioretinal diseases and subretinal hyperreflective material (SHRM) and/or pigment epithelial detachment (PED) on OCT possibly corresponding to MNV in at least one eye. Methods 102 eyes of 63 patients with fluorescein angiography (FA), OCT and SS-OCTA performed on the same day were included. FA images, the outer retina to choriocapillaris (ORCC) OCTA en face slab, a manually modified en face slab (‘custom slab’), cross-sectional OCTA and a combination of OCTA en face and cross-section were evaluated for presence of MNV. Main outcome measures Sensitivity and specificity for MNV detection, as well as the concordance was calculated using FA as the reference. Results OCTA en face imaging alone yielded a sensitivity of 46.3% (automated)/78.1% (custom) and specificity of 93.4% (automated)/88.5% (custom) for MNV detection. Cross-sectional OCTA (combination with en face) resulted in a sensitivity of 85.4% (82.9%) and specificity of 82.0% (85.3%). Concordance to FA was moderate for automated en face OCTA (κ = 0.43), and substantial for custom en face OCTA (κ = 0.67), cross-sectional OCTA (κ = 0.66) and the combination (κ = 0.68). Conclusion Segmentation errors result in decreased sensitivity for MNV detection on automatically generated OCTA en face images. Cross-sectional OCTA allows detection of MNV without manual modification of segmentation lines and should be used for evaluation of MNV on OCTA.

scholarly journals En Face Imaging of the Choroid in Polypoidal Choroidal Vasculopathy Using Swept-Source Optical Coherence Tomography

2015 ◽  
Vol 159 (4) ◽  
pp. 634-643.e2 ◽  
Author(s):  
Tarek Alasil ◽  
Daniela Ferrara ◽  
Mehreen Adhi ◽  
Erika Brewer ◽  
Martin F. Kraus ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Polypoidal Choroidal Vasculopathy ◽  
Optical Coherence ◽  
Swept Source ◽  
En Face ◽  
Choroidal Vasculopathy ◽  
En Face Imaging

scholarly journals En face image-based classification of diabetic macular edema using swept source optical coherence tomography

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Atsushi Fujiwara ◽  
Yuki Kanzaki ◽  
Shuhei Kimura ◽  
Mio Hosokawa ◽  
Yusuke Shiode ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Macular Edema ◽  
Diabetic Macular Edema ◽  
Outer Nuclear Layer ◽  
Subretinal Fluid ◽  
Plexiform Layer ◽  
Optical Coherence ◽  
Fiber Layer ◽  
Swept Source ◽  
En Face

AbstractThis retrospective study was performed to classify diabetic macular edema (DME) based on the localization and area of the fluid and to investigate the relationship of the classification with visual acuity (VA). The fluid was visualized using en face optical coherence tomography (OCT) images constructed using swept-source OCT. A total of 128 eyes with DME were included. The retina was segmented into: Segment 1, mainly comprising the inner nuclear layer and outer plexiform layer, including Henle’s fiber layer; and Segment 2, mainly comprising the outer nuclear layer. DME was classified as: foveal cystoid space at Segment 1 and no fluid at Segment 2 (n = 24), parafoveal cystoid space at Segment 1 and no fluid at Segment 2 (n = 25), parafoveal cystoid space at Segment 1 and diffuse fluid at Segment 2 (n = 16), diffuse fluid at both segments (n = 37), and diffuse fluid at both segments with subretinal fluid (n = 26). Eyes with diffuse fluid at Segment 2 showed significantly poorer VA, higher ellipsoid zone disruption rates, and greater central subfield thickness than did those without fluid at Segment 2 (P < 0.001 for all). These results indicate the importance of the localization and area of the fluid for VA in DME.

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