TABLE 2:
Number of findings |
|||
---|---|---|---|
Detection with MR Angiography* | Detection with TCCD* |
Total | |
Yes | No | ||
Observer 1 | |||
Yes | 105 | 5 | 110 |
No | 18 | 22 | 40 |
Total | 123 | 27 | 150 |
Observer 2 | |||
Yes | 107 | 9 | 116 |
No | 16 | 18 | 34 |
Total | 123 | 27 | 150 |
Diagnostic discrimination |
|||
---|---|---|---|
Measure | Observer 1† | Observer 2† | |
Sensitivity, % | 85 (79, 92) | 87 (81, 93) | |
Specificity, % | 81 (62, 94) | 67 (46, 84) | |
Positive predictive value, % | 95 (90, 99) | 92 (86, 96) | |
Negative predictive value, % | 55 (39, 71) | 53 (35, 70) |
Yes indicates functional. No indicates nonfunctional.
Numbers in parentheses are the 95% confidence intervals.