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. 2020 Aug 6;51(9):2801–2809. doi: 10.1161/STROKEAHA.120.030215

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© 2020 The Authors.

Stroke is published on behalf of the American Heart Association, Inc., by Wolters Kluwer Health, Inc. This is an open access article under the terms of the Creative Commons Attribution Non-Commercial-NoDerivs License, which permits use, distribution, and reproduction in any medium, provided that the original work is properly cited, the use is noncommercial, and no modifications or adaptations are made.

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Figure 1. — Classification of proximal plaque and distal plaque on middle cerebral artery (MCA). Two representative cases of proximal plaque (located adjacent to the lenticulostriate artery [LSA] origin; (A) and distal plaque (located distal to the LSA origin; (B) on MCA. A, Diffusion-weighted imaging (DWI) and coronal minimum intensity projection (MinIP) showed a single subcortical infarction in the right LSA territory (green arrows); Magnetic resonance angiography (MRA) showed no stenosis on the relevant MCA; Coronal MinIP revealed shorter lengths of right LSAs compared with the left side and the curved multiplanar reconstruction (curved-MPR) showed a plaque adjacent to the corresponding LSA origins (blue dashed lines); corresponding cross-section view also demonstrated a traceable LSAs (red arrows) originating from the dorsally located plaque (arrowhead) of MCA. B, DWI and coronal MinIP showed a single subcortical infarction in the right LSA territory (green arrows); MRA showed no stenosis on the relevant MCA; Coronal MinIP revealed shorter lengths of right LSAs compared with the left side, but the curved-MPR showed a plaque distal to the corresponding LSA origin vessel segment of MCA (blue dashed lines); corresponding cross-section view demonstrated a dorsal plaque without traceable LSAs from the MCA wall.