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Table 1

From: MRI Visualization of CSF Flow

AS

FM

3rd

V

FMag

Positive-True

26/26

8/8

12/12

30/30

False

0/26

0/8

0/12

0/30

Negative-True

16/25

0/2

2/3

1/3

False

9/25

2/2

1/3

2/3

Specificity

100%

0%

100%

100%

Sensitivity

74%

80%

92%

94%

Negative

LR 0.26

Undefined

0.08

0.06