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. Author manuscript; available in PMC: 2018 Oct 14.
Published in final edited form as: J Neurosurg. 2016 Mar 11;126(2):495–503. doi: 10.3171/2015.11.JNS15562

Figure 1.

Figure 1.

Admission MRI studies obtained in a patient with a symptomatic left hemisphere. Corresponding atlas maps for hemodynamic sections (a) and orthogonal representations of reactivity maps (b), demonstrating impairment in CVR in the left hemisphere (yellow arrows). Right hemisphere (asymptomatic) PIRAMD score: 0 (Grade 1); left hemisphere (symptomatic) PIRAMD score: 10 (Grade 3). A = anterior; I = inferior; L = left; P = posterior; R = right; S = superior. Figure is available in color online only.