Performance characteristics of intraductal ultrasound (IDUS) versus endoscopic retrograde cholangiopancreatography (ERCP) with and without tissue sampling
Performance characteristics of intraductal ultrasound (IDUS) versus endoscopic retrograde cholangiopancreatography (ERCP) with and without tissue sampling
Sensitivity (percent)
Specificity (percent)
Accuracy (percent)
ERCP
83
42
67*
Tissue sampling
50
100
68¶
ERCP & tissue sampling
83
42
67Δ
IDUS
89
92
90
* p<0.02 vs IDUS. ¶ p<0.03 vs IDUS. Δ p<0.02 vs IDUS.
Data from: Vazquez-Sequeiros E, Baron TH, Clain JE, et al. Evaluation of indeterminate bile duct strictures by intraductal US. Gastrointest Endosc 2002; 56:372.
