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  • Title: Acute basilar artery occlusion (BAO): a pictorial review of multimodal imaging findings.
    Author: Vásquez-Codina AY, Leguízamo-Isaza JM, Aborashed-Amador NF, Aldana-Leal JC, Roa-Mejía CH.
    Journal: Emerg Radiol; 2021 Dec; 28(6):1205-1212. PubMed ID: 34231114.
    Abstract:
    Acute basilar artery occlusion (BAO) is an uncommon cause of stroke; however, it constitutes a serious medical emergency and is associated with elevated mortality rates as well as unfavorable functional outcomes. This is especially true when it is not rapidly diagnosed, and the initiation of reperfusion therapies is delayed. Its etiology is mainly embolic or atherosclerotic, and it often presents with non-specific signs and symptoms (e.g., vertigo, cephalalgia, reduced consciousness, or hemiparesis) that can simulate an anterior circulation stroke. Therefore, obtaining imaging studies that include computed tomography (CT), computed tomography angiography (CTA), and diffusion-weighted magnetic resonance imaging (DWI MRI) as part of the diagnostic approach is crucial to make an accurate diagnosis. The main pillar of acute BAO treatment is early recanalization using intravenous thrombolysis, mechanical thrombectomy, or bridging therapy, in which both methods are used. This pictorial essay illustrates the essential role that multimodal imaging plays in the prompt diagnosis, management, and overall outcome of patients with acute BAO.
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