What Can We Get Beyond Color Fundus Image with 400KHz OCTA for BRVO (Branch Retinal Vein Occlusion)?
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- Time of issue：2022-05-23 16:59
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(Summary description)Fig1. Retina blood flow OCT Angiography (non-invasive). Occlusion at superior branch vein. Extension non-perfusion area with abnormal vessels.
What Can We Get Beyond Color Fundus Image with 400KHz OCTA for BRVO (Branch Retinal Vein Occlusion)?
(Summary description)Fig1. Retina blood flow OCT Angiography (non-invasive). Occlusion at superior branch vein. Extension non-perfusion area with abnormal vessels.
- Categories：Gallery
- Time of issue：2022-05-23 16:59
- Views：
Information
Fig1. Retina blood flow OCT Angiography (non-invasive). Occlusion at superior branch vein. Extension non-perfusion area with abnormal vessels.
Fig2. Vitreous slab shows distinct retinal neovascularization (NVE). Immediate attention was required.
Fig3. Retina structural enface shows clear grade 3 laser spots from treatment. (All the pictures were taken after focal photocoagulation. Please review our previous posts for details of laser grading)
Fig4. Flow voids from laser, in the layer of choriocapillaris,.
Fig5. Relatively intact choroid flow in Choroid Sattler’s and Haller’s layer.
Fig1-5 were generated from the same scans by a 400KHz SS-OCT/OCTA system (BMizar, BM-400K, TowardPi Medical, China). Only two shots were taken, one at standard position (120° covers posterior pole with optic disc), one at superior of optic disc. Automatic montage is applicable even for such large size OCTA.
Fig6. Image from standard color fundus camera for reference. Similar position, montage from 2 shots at smaller size than OCTA though.
Images courtesy of Prof. HouBin Huang and Dr. ZeHua Chen (Chinese PLA Medical School Hainan Hospital)
Editor: Dr. Jian Zhou (TowardPi Medical)
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