{'fraction_non_alphanumeric': 0.018880208333333332, 'fraction_numerical': 0.0032552083333333335, 'mean_word_length': 5.457983193277311, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Intraoperative Support Using a Virtual Fluoroscopic Image in Thrombosis Recovery Treatment

Virtual fluoroscopic image is a navigation tool for endovas cular treatment in which images can be easily obtained by Objective: It is often difficult and has a potential risk of vessel injury to navigate a catheter or a microcatheter through the difficult types of aortic arches and through an occluded segment of the intracranial arteries under fluoroscopic guidance alone. Herein, we demonstrate a supportive technique of virtual fluoroscopic imaging from a data of non-contrast CT for a case of thrombectomy for acute occlusion of the right middle cerebral artery (MCA). Case Presentation: An 85-year-old woman was transferred to our hospital with complaints of left-sided paralysis, dysarthria, and aphasia. CT revealed a hyperdense MCA sign, suggesting acute right MCA occlusion. CT showed bovine type of aortic arch too. Subsequently, mechanical thrombectomy was performed with the right brachial approach. A guiding catheter and a microcatheter system were successfully navigated into the target lesion under virtual fluoroscopic imaging guidance, and then thrombolysis in cerebral infarction (TICI) 3 recanalization was obtained in puncture-to-recanalization time of 37 minutes. Conclusion: Virtual fluoroscopic images helped us to perform thrombectomy in a case of acute MCA occlusion, which provided anatomical information on the artery distal to the occlusion site, and were useful in determining the direction of the wire guidance.