Table 2 MRI and PET variables and the codes used in logistical regression analysis.

From: Incremental diagnostic value of 18F-Fluetemetamol PET in differential diagnoses of Alzheimer’s Disease-related neurodegenerative diseases from an unselected memory clinic cohort

Variables

Scale

Coding

Subcortical WM change

Fazekas score

0 (none)

1 (mild)

2 (moderate)

3 (severe)

Periventricular WM change

Fazekas score

0 (none)

1 (mild)

2 (moderate)

3 (severe)

Hippocampal atrophy

Scheltens scale

0/1 (none/minimal)

2 (mild)

3 (moderate)

4 (severe)

MRA head

Normal

0

Mild

1

Mild to moderate

2

Moderate

3

Moderate to severe

4

Severe

5

ASL pattern (cat)*

Normal

0

AD pattern

1

Non-AD pattern

2

Non-specific pattern

3

Amyloid

Negative

0

Positive

1

  1. *ASL pattern was defined as categorical data.
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