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. 2023 Mar 14;100(11):e1148–e1158. doi: 10.1212/WNL.0000000000201687

Figure 4. Example of a Patient With Unfavorable HIR.

Figure 4

(A) An 11-year-old boy presented with cardioembolic stroke and uncertain time of last known well. Initial pNIHSS 16 and MR-DWI volume of 29.1 mL. (B) Favorable perfusion profile on RAPID, with mismatch ratio 3.1. (C) Unfavorable HIR of 0.5 indicating poor collateral status. (D) Despite TICI 2c reperfusion, large final stroke volume 226.8 mL, final ASPECTS of 1. Abbreviations: DWI = diffusion-weighted imaging; HIR = hypoperfusion intensity ratio.