Duration of fast prior to injection:
Blood glucose prior to injection:
Radiopharmaceutical: F-18 FDG
Post-injection imaging delay:
Documented cognitive decline of at least six (6) months as assessed by a specialist in the diagnosis and management of dementia. Despite cognitive scales, cross-sectional anatomical images and neuropsychological testing, inconclusive differentiation between frontotemporal (FTD) and Alzheimer dementia (AD).
No foci of significantly abnormal metabolism.
Abnormally decreased metabolism in the posterior parietotemporal lobes in a pattern characteristic of Alzheimer dementia.
Abnormally decreased metabolism in the frontal lobes in a pattern characteristic of frontotemporal dementia.
Occipital lobe metabolism:
No abnormal focal hypometabolism to suggest dementia.
Findings most consistent with Alzheimer dementia.
Findings most consistent with frontotemporal dementia.
No significant intracranial abnormality.