 MRI: Images are slightly limited by patient motion. There is no acute infarct, mass effect, or cerebral edema. There is mild and patchy white matter T2 signal abnormality adjacent to the atria of the lateral ventricles, unchanged. The ventricles and basal cisterns are prominent for age, related to global volume loss. There is no midline shift or herniation. There is minimal scattered ethmoid and sphenoid sinus mucosal thickening. The imaged marrow signal is diffusely low on T1, consistent with reactive marrow process in this patient with known sickle cell disease. There is no pathological enhancement.MRA: There is moderate motion degradation and artifact related to inflow limiting evaluation. Within these limitations, the intracranial circulation appears grossly intact. Area of mild narrowing of the right supraclinoid carotid artery and exam is not well visualized due to artifact. Given the degree of artifact present, this exam is not felt to be diagnostic for small aneurysms. There is prominence of the lenticulostriate arterial branches and better appreciated on prior exam, consistent with patient's known Moyamoya.
No acute infarct. Limited MRA of the brain due to artifact related degradation with grossly intact intracranial circulation, with previously noted subtle abnormalities not as well appreciated.I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.