Hypovascularity on cerebral radionuclide angiogram.
D000368:Aged; D000783:Aneurysm / Q000000981:diagnostic imaging*; D002340:Carotid Artery Diseases / Q000000981:diagnostic imaging*; D002343:Carotid Artery, Internal; D005260:Female; D006801:Humans; D011877:Radionuclide Imaging