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Table 4 Diagnostic performance of different quantitative MRI parameters for and the assessment of liver fibrosis in patients without (< F2) and with significant (≥ F2) fibrosis

From: Diagnostic value of magnetic resonance parametric mapping for non-invasive assessment of liver fibrosis in patients with primary sclerosing cholangitis

Variable

AUC

Cutoff value

Sensitivity (%)

Specificity (%)

PPV (%)

NPV (%)

Accuracy (%)

Hepatic native T1 (ms)

0.711

 > 562.7

52.6 (31.7–72.7)

100.0 (77.2–100.0)

100.0 (72.2–100.0)

59.1 (38.7–76.7)

71.9 (54.6–84.4)

Hepatic extracellular volume fraction (%)

0.858

 > 27.2

84.2 (62.4–94.5)

84.6 (57.8–95.7)

88.9 (67.2–96.9)

78.6 (52.4–92.4)

84.4 (68.2–93.1)

Hepatic T2 (ms)

0.686

 > 52.0

57.9 (36.3–76.9)

92.3 (66.7–98.6)

91.7 (64.6–98.5)

60.0 (38.7–78.1)

71.9 (54.6–84.4)

APRI score

0.787

 > 0.41

64.7 (41.3–82.7)

84.6 (57.8–95.7)

84.6 (57.8–95.7)

64.7 (41.3–82.7)

73.3 (55.6–85.8)

FIB-4 score

0.588

 > 1.2

35.3 (17.3–58.7)

76.9 (49.7–91.8)

66.7 (35.4–87.9)

47.6 (28.3–67.6)

53.3 (36.1–69.8)

ALT/AST ratio (de-Ritis)

0.570

 ≤ 0.76

58.8 (36.6–78.4)

69.2 (42.4–87.3)

71.4 (45.4–88.3)

56.3 (33.2–76.9)

63.3 (45.5–78.1)

MELD score

0.680

 > 6

52.6 (31.7–72.7)

84.6 (57.8–95.7)

83.3 (55.2–95.3)

55.0 (34.2–74.2)

65.6 (48.3–79.6)

  1. Data in parentheses are 95% confidence interval
  2. PPV, positive predictive value, NPV, negative predictive value, MELD, Score Model of End Stage Liver Disease; APRI, aspartate aminotransferase to platelet ratio index; FIB-4, Fibrosis-4-Score; ASL/ALT ratio (de-Ritis), De-Ritis ratio