Fig. 1From: Collateral status evaluation coupled with time window by dynamic axial computed tomographic angiography with a focus on the middle cerebral artery for mechanical thrombectomyA CT scout image. The CT acquisition started from the line (inferior white line) connecting the pituitary fossa (black dot) with the point (white dot) 2 cm upward from the internal occipital protuberance (arrowhead) by tilting the gantry. CT scanning was performed with 4-cm coverage (dashed arrows and superior white line). CT, computed tomographyBack to article page