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Small right MCA aneurysm treated with balloon assistance (patient 51).
A, CT obtained 80 minutes after the treatment reveals increased cortical attenuation (arrows).
B–C, Follow-up CT examinations with a 4-hour interval; each shows partial (B) and total (C) resolution of the cortical increased attenuation.
D, DWI image of the MR image obtained immediately after the first CT (A) shows no corresponding abnormality.
