Table 2

Sensitivity and specificity of scintigraphic results as compared with manometry

Sensitivity (%)Specificity (%)PPV (%)NPV (%)Accuracy (%)
QHBS, quantitative hepatobiliary scintigraphy; CBD, common bile duct; LFT, liver function test; PPV, positive predictive value; NPV, negative predictive value.
QHBS positive7971885577
CBD>12 mm4286893554
Abnormal LFT2671712338