% 0期刊文章% Kaustubh Limaye % Girish Bathla %一个亚当科比%一个布鲁诺Policeni %萨米Alkasab % Sudeepta Dandapat %一个Minako Hayakawa Waldo格雷罗州% %一个埃德加萨马尼%大卫·哈桑%恩里克Leira %一个圣地亚哥Ortega-Gutierrez科林Derdeyn % % T时间不变的CTA源自CTP保留高诊断产量MCA-M2遮挡(S57.003) % D J神经病学2019% % P S57.003 % V 92% N 15补充% X目的:测试的可靠性时不变CTA源自CTP识别M2 MCA遮挡。首页背景:一个时间不变的CT血管造影(CTA)来自CT灌注(CTP)数据避免了额外的对比,与传统CTA辐射和时间有关。先前的研究已经验证了这一技术对LVO局限于M1 MCA。随着血管内技术的进步,以前被认为是“远”的分支MCA像M2段现在被认为是适合血栓切除术。设计/方法:我们回顾性复习连续CTP患者。使用CT灌注协议40 cc的碘化对比和40秒采集时间。时间不变的CTA图像产生的CT灌注数据。灌注CT数据量经常重建了一片宽度的1.5毫米每毫米CTA分析。我们得分为主观CTA扫描图像质量M1 / M2段的存在,没有记录的闭塞和站点由三个独立的蒙蔽了评论家和诊断脑血管造影(DSA)相比,阅读由一个独立neurointerventionalist情况下24/45的情况下,接受血管内介入。观察到协议计算的概率来衡量协议。结果:从45例分析1没有遮挡,20 M1和24平方米闭塞。观察到的图像质量协议范围从96%(95%置信区间:92 - 99%)M1闭塞到77%(95%置信区间:72 - 81%)远端M2闭塞。 The observed agreements compared 3 image reviewers vs DSA in M2 patients (n=24) was 98% for identifying occlusion (95% CI 95–100%), 94% for identifying proximal M2 occlusion (95% CI 88–98%). Beyond the bifurcation there was 91% (95% CI 84–97%) and 90% ( 95% CI 83–95%) agreement respectively for correctly identifying inferior and superior branch of M2 occlusion.Conclusions: Time invariant CTA derived from CTP data preserves high diagnostic yield for correctly identifying M2 MCA occlusion without addition of dedicated CTADisclosure: Dr. Limaye has nothing to disclose. Dr. Bathla has nothing to disclose. Dr. Bryant has nothing to disclose. Dr. Policeni has nothing to disclose. Dr. Alkasab has nothing to disclose. Dr. Dandapat has nothing to disclose. Dr. Guerrero has nothing to disclose. Dr. Hayakawa has nothing to disclose. Dr. Samaniego has received personal compensation for consulting, serving on a scientific advisory board, speaking, or other activities with Microvention/Medtronic. Dr. Hasan has nothing to disclose. Dr. Leira has nothing to disclose. Dr. Derdeyn has nothing to disclose. Dr. Ortega-Gutierrez has nothing to disclose. %U