Table 2 Comparison of various MR protocols in terms of diagnostic accuracies regarding involvement anterior to rectum.
From: The importance of rectal cancer MRI protocols on iInterpretation accuracy
Compliant and combination protocol (D and C) | Noncompliant protocol (N) | |
|---|---|---|
Imaging accuracies | ||
True positive | 6 | 2 |
True negative | 16 | 3 |
False positive | 1 | 6 |
False negative | 1 | 2 |
Sensitivity (%) (95% CI) | 85.7 (42–99) | 50.0 (6–93) |
Specificity (%) (95% CI) | 94.1 (71–99) | 33.3 (7–70) |
Positive Predictive Value (%) (95% CI) | 85.7 (42–99) | 25.0 (3–65) |
Negative Predictive Value (%) (95% CI) | 94.1 (71–99) | 60.0 (14–94) |