Other imaging studies in<unk> 's include positron emission tomography (PET) and single photon emission computed tomography (SPECT) scan. PET and SPECT scan are not routinely done in<unk> 's<unk> . However, patients with atypical presentation may be evaluated with either a PET or SPECT scan to assess for any underlying condition. In these patients, use of amyloid β PET scan will reveal lower FDG (fluorine-18 fluorodeoxyglucose) metabolism and higher PiB ([11 C]Pittsburgh compound B) deposition in areas of the brain affected by<unk> 's<unk> . On SPECT scan patients with<unk> 's<unk>  have low relative regional cerebral blood flow (rCBF) in the parietal and prefrontal cortices.
Alzheimer's disease Other Imaging Findings
Dementia other imaging findings
Schizophrenia other imaging Findings
Dementia laboratory findings
Amnesia other imaging findings
Coma laboratory findings
Amyotrophic lateral sclerosis risk factors
Encephalopathy other imaging findings