DOI: 10.1148/radiol.253025 ISSN: 0033-8419

No Reflow at Perfusion Imaging: Thresholds That Distinguish Functional and Tissue Outcome Groups in Acute Stroke

Tianqi Xu, Chushuang Chen, Nathan W. Manning, Andrew K. Cheung, Dennis J. Cordato, Christopher Blair, Beom Joon Kim, Jianhong Yang, Gang Li, Mark Parsons, Longting Lin

In patients with successful angiographic recanalization after endovascular thrombectomy (EVT), the presence of a lesion with delay time longer than 4 seconds appeared to be the most informative no-reflow definition at 24-hour post-EVT CT or MR perfusion imaging.

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