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Show 267 Cerebral angiographic features of Ophthalmic Artery in patients with central retinal artery occlusion and its influence on intra-arterial thrombolysis Songdi Wu 1, Qingli Lu 2 The First Hospital of Xi’an; The First Affiliated Hospital of Northwest University; Xian Key Laboratory of Innovation and Transformation of Neuroimmunological Diseases, 2 Xi’an No.1 Hospital, First Affiliated Hospital of Northwest University 1 Introduction: In this study, cerebral angiography was used to observe the features of the OphA in CRAO patients. Methods: There were 56 patients with non-arterial CRAO who underwent cerebral angiography consecutively included, and the demographic characteristics, vascular risk factors, and cerebral angiographic of the patients were recorded in detail. The course of the OphA was classified as type A, type B and type C according to its cerebral angiographic morphology. It was divided into the proximal group and the distal group depending on whether the OphA originated from the proximal opthalmic segment of theinternal carotid artery(ICA), and the differences in the OphA-ICA angle, the course and the diameter of theOphA, and the proportion, the operation time and the complications of the IAT between the two groups were compared. Results: Analysis of the cerebral angiographic features showed that the OphA was supplied by the ICA in 50 cases and the external carotid artery (ECA) in 6 cases, respectively, among which 45 cases were treated by anterograde IAT via the ICA (including 21 caseswith proximal OphA microcatheterization) and 2 cases by retrograde IAT via the ECA. Further analysis of the cerebral angiographic features of the OphA originating from the ICA, the results showed that the mean OphA-ICA angle was 81.8±25.2°, the course was type A, type B and type C in 26, 16 and 8 cases, and the OphA had no stenosis, mild-grade stenosis and moderate to high-grade stenosis in 36, 9 and 5 cases, with a mean diameter of 1.0±0.3mm. Compared with the distal group, patients in the proximal group had a larger OphA-ICA angle, a more varied course, and a shorter operation time. Conclusions: To recognize the cerebral angiographic features of the OphA in CRAO patientsis helpful to identify the blood supply of the OphA and select an individualized surgical path for IAT. References: None provided. Keywords: Interventional neuroradiology, Stroke, Vascular disorders, Retina Financial Disclosures: The authors had no disclosures. Grant Support: None. Contact Information: Songdi Wu, wusongdi@gmail.com 2024 Annual Meeting Syllabus | 427 |