fig3
![Cerebral ischemia at early postoperative period of direct revascularization for moyamoya disease: a case report and literature review](https://image.oaes.cc/7d47dfd9-ad29-4c3d-b714-f053ecca1533/1994.fig.3.png)
Figure 3. Postoperative magnetic resonance image and perfusion CT. MR image at postoperative Day 6 revealed a ischemic lesion (white arrow) of hyperintensity between the right parietal and occipital lobe on FLAIR (A) and DWI (B). Perfusion CT at postoperative Day 3 showed CBF (C) and CBV (D) reduced at the corresponding site. Regional MTT (E) and TTP (F) increased significantly. CT: computed tomography; CBF: cerebral blood flow; CBV: cerebral blood volume; DWI: diffusion weighted image; FLAIR: fluid attenuated inversion recovery; MTT: mean transit time; TTP: time to peak