| Non-MRCP group(n = 83) | MRCP group (n = 101) | χ2/Z | P |
---|---|---|---|---|
Biliary related comorbidities | Â | Â | Â | Â |
 Cholecystitis | 73(87.95%) | 94(93.07%) | 1.423 | 0.233 |
 CBDS | 7(8.43%) | 21(20.79%) | 5.393 | 0.020 |
 Cholangitis | 3(3.61%) | 6(5.94%) | -0.726 | 0.468 |
 Gallbladder duct stones | 2(2.40%) | 6(5.94%) | -1.166 | 0.244 |
 Adenomyomatosis of gallbladder | 2(2.40%) | 10(9.90%) | -2.042 | 0.041 |
 Biliary pancreatitis | 0 | 3(2.97%) | -1.579 | 0.114 |
 Gallbladder polyps | 4(4.82%) | 5(4.95%) | -0.041 | 0.967 |
 Mirizzi syndrome | 1(1.20%) | 3(2.97%) | -0.815 | 0.415 |
Abdominal ultrasound findings | 83 | 101 | Â | Â |
 CBDS | 7(8.43%) | 10(9.90%) | 0.117 | 0.732 |
 Dilation of the common bile duct | 6(7.23%) | 10(9.90%) | 0.410 | 0.522 |
 Biliary tract variation | 0 | 0 |  |  |
 Biliary tract tumors | 0 | 0 |  |  |
LC combined surgery | Â | Â | Â | Â |
 Common bile duct exploration | 6(7.23%) | 15(14.85%) | 2.618 | 0.106 |
 Common bile duct incision | 6(7.23%) | 15(14.85%) | 2.618 | 0.106 |
 T-tube drainage | 6(7.23%) | 15(14.85%) | 2.618 | 0.106 |
 Preoperative cholecystocentesis drainage | 1*(1.20%) | 1*(0.99%) | -0.139 | 0.889 |
 Preoperative ERCP + EST stone extraction | 1(1.20%) | 7*(6.93%) | -1.890 | 0.059 |
LC intraoperative situation | Â | Â | Â | Â |
 CBDS | 6(7.23%) | 15(14.85%) | 2.618 | 0.106 |
 Dilation of the common bile duct | 6(7.23%) | 15(14.85%) | 2.618 | 0.106 |
 Biliary tract variation | 1(1.20%) | 5(4.95%) | -2.050 | 0.040 |
 Biliary tract tumors | 0 | 0 |  |  |
Operating time (min) | 78.48 ± 49.54 | 89.26 ± 48.31 | -1.488 | 0.138 |