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Table 4 Detection of PSOLs with MRI, CEUS, and combined CCWM

From: Combination of CEUS and MRI for the diagnosis of periampullary space-occupying lesions: a retrospective analysis

Modality Sensitivity Specificity PPV NPV Accuracy
MRI 100% (65/65) 75.68% (28/37) 87.83% (65/74) 100% (28/28) 91.17% (93/102)
CEUS 98.53% (67/68) 79.41% (27/34) 90.54% (67/74) 96.42% (27/28) 92.15% (94/102)
MRI + CEUS 98.66% (74/75) 100% (27/27) 100% (74/74) 96.42% (27/28) 99.01% (101/102)
P (MRI vs. CEUS) 0.326 0.781 0.597 0.313 0.800
P (MRI vs. CCWM) 0.350 0.016 0.006 0.313 0.009
P (CEUS vs. CCWM) 0.944 0.036 0.020 NA 0.041
  1. PPV- negative predictive value NPV- negative predictive value, MRI- magnetic resonance imaging, CEUS- contrast-enhanced ultrasound, CCWM- combination of MRI and CEUS