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. 2022 Nov 30;64(5):1950–1957. doi: 10.1177/02841851221138557

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© The Foundation Acta Radiologica 2022

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Fig. 1. — Top, from left to right: CT axial sections without and with contrast enhancement depict a focal area of ipo-density correlated with ischemic site (white arrow) due to occlusion of right middle cerebral artery, confirmed with RAPID software – LVO detected (red circle). Bottom, from left to right: 3D CT angiography shows flow reduction with blood vessel density <45% in right M1; then, RAPID software calculates CBF and Tmax for depiction of mismatch volume and ratio. These evaluations are fundamental for our endovascular treatment planning. CBF, cerebral blood flow; CT, computed tomography; LVO, large vessel occlusion; M1, first tract of middle cerebral artery; Tmax, time-to-maximum.