Stroke. Cranial MR Angiography:The intracranial internal carotid arteries are of preserved caliber and flow-related signal. Similarly, the anterior and middle cerebral arteries as well as their major branches are normal as well. The basilar artery is codominantly supplied by the vertebral arteries. The posterior cerebral arteries are unremarkable. There is no aneurysm.Neck MR Angiography:While there is no significant abrupt change in vessel caliber, the vessels cannot be accurately assessed given the nature of MR angiography technique (non contrast enhanced MRA of the neck vessels). The vertebral arteries are normal.
There is no significant steno-occlusive disease in the head and neck. However, the assessment of the neck vessels is limited given the technical limitation of used MR angiography.