US, MRCP, CCT and ERCP: a comparative study in 131 patients with suspected biliary obstruction.

Abstract

If the suspicion posed by clinical and laboratory findings is not confirmed at US, the diagnosis must be achieved with the aid of MRCP or--where MRCP does not provide a diagnosis--CCT, so as to select candidates for therapeutic ERCP, PTC or surgery. If laboratory and clinical findings are supported by US, ERCP is required for therapeutic purposes, or--if necessary--surgery is performed.