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Table 3: Diagnostic accuracies of conventional MRI alone and combined interpretation of conventional and DCE-MRI for detecting local tumor recurrence^{^a}
PPV NPV Sensitivity Specificity Accuracy
Reader 1 
    Conventional MRI 45 (39–51)^{^b} 57 (32–80)^{^b} 79 (66–90) 22 (11–32)^{^b} 48 (35–61)^{^b}
    Conventional and DCE-MRI 89 (74–96)^{^b} 91 (79–97)^{^b} 89 (72–98) 91 (77–98)^{^b} 91 (80–96)^{^b}
Reader 2 
    Conventional MRI 49 (39–58)^{^b} 63 (38–75)^{^b} 68 (54–81) 43 (25–49)^{^b} 54 (41–67)^{^b}
    Conventional and DCE-MRI 82 (67–91)^{^b} 91 (79–97)^{^b} 88 (70–98) 87 (71–76)^{^b} 87 (77–91)^{^b}
Reader 3 
    Conventional MRI 48 (40–54)^{^b} 67 (42–86)^{^b} 82 (69–93) 29 (18–37)^{^b} 52 (39–65)^{^b}
    Conventional and DCE-MRI 89 (73–96)^{^b} 89 (76–95)^{^b} 86 (67–96) 91 (77–98)^{^b} 89 (78–95)^{^b}
Note:—NPV indicates negative predictive value; PPV, positive predictive value.
↵a Numbers in parentheses are 95% confidence intervals.
↵b Statistical difference between conventional MRI and combined interpretation of conventional and DCE-MRI (P < .05).