Phenomena

Alzheimer’s disease group (n = 25)

Dementia with Lewy bodies group (n = 11)

p-value

Severity of VOI atrophy

2.9

1.3

< 0.01*

Extent of gray matter atrophy

5.7

5.5

0.42

Extent of VOI atrophy

64.4

14.0

< 0.01*

VOI ratio

10.2

2.8

< 0.01*

Severity of VOI atrophy in the dorsal brainstem gray matter

0.6

0.8

0.07

Severity of VOI atrophy in the dorsal brainstem white matter

0.2

0.5

< 0.01*

Severity of atrophy in the medial temporal lobe gray matter

2.9

1.3

< 0.01*

Ratio of VOI atrophy in gray matter

0.2

0.6

< 0.01*

Ratio of VOI atrophy in white matter bodies

0.1

0.4

< 0.01*