Dizziness and giddiness [780.4], Reason for Study: ^Reason: ischemic stroke? History: vertigo Exam is limited due to motion artifact.No evidence of acute ischemic or hemorrhagic lesion on the scan.The ventricles, sulci and cisterns are symmetric and unremarkable. There is no mass, mass effect, edema, midline shift, intra or extra-axial fluid collection/hemorrhage, restricted diffusion/acute ischemia, or abnormal contrast enhancement. The midline structures and cranial-cervical junction are normal. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.3D time of flight MOTSA MRA brain images with maximum intensity projections of the anterior/posterior intracranial circulation demonstrate normal ICAs, MCAs and ACAs. Vertebrobasilar system appears to be normal.3D MRA neck post-gadolinium images with maximum intensity projections of the cervical vasculature demonstrate normal flow through the bilateral common carotid, carotid bifurcations, internal/external carotid, and vertebral arteries.
1. Although limited due to patient motion artifact, there is no evidence of acute ischemic or hemorrhagic lesion on the scan.2. Brain MR angiogram and neck MRA angiography without contrast enhancement shows no evidence of significant (more than 50%) arterial luminal stenosis or arterial aneurysm. 