Collateral status evaluation coupled with time window by dynamic axial computed tomographic angiography with a focus on the middle cerebral artery for mechanical thrombectomy.

ABSTRACT:

Background

Dynamic axial computed tomographic angiography (dynax-CTA), covering a thin width, with a focus on the bilateral middle cerebral artery (MCA), can quickly visualize the internal carotid artery (ICA) or MCA occlusion. We aimed to investigate whether dynax-CTA appropriately evaluated the collateral status coupled with the upper limit of the onset-to-reperfusion (OtR) time to achieve a major neurological improvement (MNI) at a 24-h follow-up examination after mechanical thrombectomy (MT).

Methods

We included acute ischemic stroke patients admitted from 2018 to 2020 who underwent dynax-CTA on admission and emergent MT for ICA or MCA occlusion. We performed dynax-CTA using an 80-row CT scanner and acquired 25 volume scans, consisting of 40 images of 1-mm thickness and

SUBMITTER: Mori T 

PROVIDER: S-EPMC8220685 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature