title: Usefulness of a percutaneous transhepatic coaxial micropuncture needle technique in patients with nondilated peripheral intrahepatic ducts.
abstract: OBJECTIVE
  I sought to develop an efficacious transhepatic technique for localizing normal or minimally dilated biliary radicles using 25- to 27-gauge needles threaded through 21- to 22-gauge needles.
  
  
  CONCLUSIONS
  The micropuncture needle is a useful adjunct for performing transhepatic cholangiography in patients whose bile ducts are nondilated or in whom the standard transhepatic needle technique has failed.
mesh_terms: D000328:Adult; D000368:Aged; D001653:Bile Ducts, Intrahepatic / Q000473:pathology*; D001707:Biopsy, Needle / Q000379:methods*; D004867:Equipment Design; D005260:Female; D006801:Humans; D008099:Liver; D008297:Male; D008875:Middle Aged