Crossed cerebellar and uncrossed basal ganglia and thalamic diaschisis in Alzheimer's disease.

Abstract:

:We detected crossed cerebellar as well as uncrossed basal ganglia and thalamic diaschisis in Alzheimer's disease by positron emission tomography (PET) using 18F-fluorodeoxyglucose. We studied a series of 26 consecutive, clinically diagnosed Alzheimer cases, including 6 proven by later autopsy, and compared them with 9 age-matched controls. We calculated asymmetry indices (AIs) of cerebral metabolic rate for matched left-right regions of interest (ROIs) and determined the extent of diaschisis by correlative analyses. For the Alzheimer group, we found cerebellar AIs correlated negatively, and thalamic AIs positively, with those of the cerebral hemisphere and frontal, temporal, parietal, and angular cortices, while basal ganglia AIs correlated positively with frontal cortical AIs. The only significant correlation of AIs for normal subjects was between the thalamus and cerebral hemisphere. These data indicate that PET is a sensitive technique for detecting diaschisis.

journal_name

Neurology

journal_title

Neurology

authors

Akiyama H,Harrop R,McGeer PL,Peppard R,McGeer EG

doi

10.1212/wnl.39.4.541

subject

Has Abstract

pub_date

1989-04-01 00:00:00

pages

541-8

issue

4

eissn

0028-3878

issn

1526-632X

journal_volume

39

pub_type

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