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. 2020 Aug 10;26(5):602–607. doi: 10.1177/1591019920949674

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Figure 1. — Images of case 1. (a) MRA performed 3 months prior to admission revealed severe stenosis in the left M1. (b) DSA during the more recent attack indicated occlusion of the left M1 with good collaterals. Retro-flow reconstituted the distal portion of M1. (c) Direct angioplasty was performed using a balloon catheter. (d–f) Angioplasty achieved an mTICI score of 3. MRA, magnetic resonance angiography; M1, first segment of the middle cerebral artery; DSA, digital subtraction angiography; mTICI: modified Treatment in Cerebral Ischemia.