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Egyptian Journal of Radiology and Nuclear Medicine

Table 3 Comparison between diagnostic indices of routine MRI and T2 mapping

From: Role of adding T2 mapping sequence to the routine MR imaging protocol in the assessment of articular knee cartilage in osteoarthritis

Parameter

TP

TN

FP

FN

Accuracy(a)

Sensitivity

Specificity

PPV(a)

NPV(a)

Routine MRI

22

20

0

8

94.7

73.3%

100%

100%

63.1%

T2 value (ms)

29

18

2

1

91.3

96.7%

90.0%

70.7%

99.1%

  1. aThis value is dependent on disease prevalence (20%)
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