Non-invasive assessment of choledocholithiasis in patients with gallstones and abnormal liver function

Table 3 Final endoscopic retrograde cholangiopancreatography findings

Presence of	Patient	US abnormal	Mean T.Bili	Mean Al-P
stones			(mg/dL)	(ratio to normal)
Stones	109 (56.5)	82 (90)	4.3 ± 2.1	1.9 ± 0.8
No stones	84 (43.5)	9 (10)	2.9 ± 1.3	1.3 ± 0.6
P value		< 0.0001	< 0.01	< 0.001
Total	193	91	3.7	1.7

Data are expressed as absolute numbers (percentage) or mean ± SD. MRCP: Magnetic resonance cholangiopancreatography; Al-P: Alkaline phosphatase; T.Bili: Total bilirubin; US: Ultrasound.