see also: [[Ascending cholangitis]] ERCP = Endoscopic retrograde cholangio-pancreatography | modality | advantage | disadvantage | | -------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- | | ERCP | - diagnostic and therapeutic | - can cause pancreatitis | | MRCP | - sensitive to delineate obstruction and alternative diagnoses missed on transabdominal ultrasound<br>- has a high sensitivity for detecting biliary calculi and malignant biliary obstruction | - does not treat underlying issue<br>- prolonged procedure<br>- worse environment to resuscitate unwell patient |