title: PET, CT, and MR imaging in cerebrovascular disease.
abstract: Forty-five patients with cerebrovascular disease (single and multiple infarcts, intracerebral hemorrhages) were examined with X-ray CT, magnetic resonance (MR) imaging, and positron emission tomography (PET). In six patients with acute infarcts repeat measurements with all techniques were performed after 2 weeks. Magnetic resonance and PET were more sensitive in the detection of ischemic lesions than X-ray CT. With PET, functional disturbances could be demonstrated even in two cases where CT and MR were normal, while the latter techniques were superior in exactly localizing a lesion. Changes in lesion appearance with time were observed with all techniques, and the pathophysiologically important phenomena of hyperperfusion or hypermetabolism were documented in four infarcts with PET.
mesh_terms: D001921:Brain / Q000000981:diagnostic imaging / Q000378:metabolism; D002543:Cerebral Hemorrhage / Q000175:diagnosis; D002544:Cerebral Infarction / Q000175:diagnosis; D002560:Cerebrovascular Circulation; D002561:Cerebrovascular Disorders / Q000175:diagnosis*; D003847:Deoxyglucose / Q000031:analogs & derivatives; D003937:Diagnosis, Differential; D003974:Diatrizoate Meglumine; D005461:Fluorine; D019788:Fluorodeoxyglucose F18; D005947:Glucose / Q000378:metabolism; D006801:Humans; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D011868:Radioisotopes; D014055:Tomography, Emission-Computed / Q000379:methods; D014057:Tomography, X-Ray Computed / Q000379:methods
chemical_list: D011868:Radioisotopes; D019788:Fluorodeoxyglucose F18; D005461:Fluorine; D003974:Diatrizoate Meglumine; D003847:Deoxyglucose; D005947:Glucose