Abstract
We report a case of middle cerebral artery dissection onset of ischemic stroke successfully diagnosed by MRA source images at the initial visit. A 75-year-old woman suddenly developed aphasia and right hemiparesis. Although MIP images of MRA revealed left middle cerebral artery M1 stenosis suggestive of atherothrombotic stroke, she was soon underwent an accurate diagnosis of middle cerebral artery dissection based on MRA source images and left carotid angiogram. Although the diagnosis of the intracranial cerebral artery dissection is not easy, it is needed to recognize the possibility of cerebral artery dissection in the intracranial major artery stenosis.
