Fig. 1
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12245-021-00376-3/MediaObjects/12245_2021_376_Fig1_HTML.png)
Non-contrast CT scan with hyperdense basilar artery sign (arrows). No hypodensities were identified in the brainstem, cerebellum, or cerebral hemispheres
Non-contrast CT scan with hyperdense basilar artery sign (arrows). No hypodensities were identified in the brainstem, cerebellum, or cerebral hemispheres