Figure 3: Case 3: (a) Initial magnetic resonance imaging (MRI)-diffusion-weighted images (DWI) show acute ischemic changes in the left corona radiata and frontal lobe. (b) Initial magnetic resonance angiography (MRA) shows the left internal cerebral artery (ICA) occlusion and cross-flow to the left middle cerebral artery (MCA) through the anterior communicating artery. (c and d) Left internal cerebral angiography showing the ICA occlusion (white arrow). (e) Right internal cerebral angiography shows the collateral flow for the left MCA through the anterior communicating artery. (f) Radiography image showing the retrieval stent (white arrowheads). (g and h) Left internal cerebral angiography shows revascularization of the left ICA with a small amount of red clot. (i) Posttreatment MRI-DWI show no ischemic changes. (j) Posttreatment MRA shows revascularization of the left ICA.