Abstract W MP13: Missed Imaging Diagnosis Without CT Perfusion May Affect Clinical Decision for TPA and Thrombectomy in Acute Stroke

• DOI: 10.1161/str.45.suppl_1.wmp13
• Publication Date: 2021-07-03T10:51:53Z
• Authors: Sarah W Meng; Xiang Liu; Michael Hewitt
• Keywords: Stroke; Acute stroke

Purpose: In a previous study, we found higher detection rate of 2nd and 3rd order vascular thrombosis when CT Perfusion (CTP) was performed as compared to non-contrast (NCCT) angiography (CTA) alone. Additionally, significant number patients with acute infarct were reported negative without CTP. this sought determine whether missed imaging diagnosis CTP might affect clinical decision making. Methods: A total 758 cases included in our deficits all 71 final volume 2.8 ml or above. Conversely, 23 96 (24%) negative. the group CTP, 7 10 who had thromboses > 30cc negative, whereas only 1 but NCCT. The treatment decisions at time stroke reviewed for these patients. Results: 30ml zero received TPA thrombectomy. same category, 5 positive (p = 0.041). There also thrombectomy diagnosis, both (13 71, 18.3%) (28 73, 38.4%), (3 23, 13%, p 0.059). Fewer possible reason is that from an earlier phase program, tended be more conservative. Conclusions: Our study finds discrepancies making versus diagnosis. less likely receive treatment, including those relatively large size (>30ml). We speculate may create doubt some cases. Adding protocol will increase diagnostic accuracy exclude mimics, therefore providing valuable information treatment.