title: The Usefulness of Virtual Fluoroscopic Preprocedural Planning During Percutaneous Transhepatic Biliary Drainage.
abstract: OBJECTIVE
  To retrospectively evaluate the usefulness of virtual fluoroscopic preprocedural planning (VFPP) in the percutaneous transhepatic biliary drainage (PTBD) procedure.
  
  
  METHODS
  Twenty-two patients who were treated by PTBD were included in this study. Twelve patients were treated using PTBD intraoperative referencing coronal computed tomography (CT) images (i.e., coronal CT group), and ten patients were treated using PTBD intraoperative referencing VFPP images (i.e., VFPP group). To analyze the effect of the intraoperative referencing VFPP image, the VFPP group was retrospectively compared with the coronal CT group.
  
  
  RESULTS
  The characteristics of both patient groups were not statistically significantly different. There were no significant differences in the targeted bile duct, diameter and depth of the target bile, breath-holding ability, number of targeted bile duct puncture attempts, change in the targeted bile duct, and exchange of the drainage catheter. However, the X-ray fluoroscopy time and the procedure time were significantly shorter in the VFPP group than in the coronal CT group (196 vs. 334 s, P < 0.05; and 16.0 vs. 27.2 min, P < 0.05).
  
  
  CONCLUSIONS
  Intraoperative referencing using the VFPP imaging in PTBD intuitively can be a useful tool for better localization of the guidewire in the bile duct and thereby shorten the X-ray fluoroscopy time and procedure time while minimizing radiation exposure and complications.
authors.affiliation: Department of Radiology (Diagnostic Radiology), Tokushima University Hospital, 2-50-1, Kuramoto-cho, Tokushima City, Tokushima, 770-8503, Japan. kinoshita.3216@tokushima-u.ac.jp.
authors.forename: Mitsuhiro
authors.initials: M
authors.lastname: Kinoshita
authors.affiliation: Department of Radiology, Tokushima Red Cross Hospital, 103 Irinokuchi Komatsushima-cho, Komatsushima City, Tokushima, 773-8502, Japan.
authors.forename: Ryozo
authors.initials: R
authors.lastname: Shirono
authors.affiliation: Department of Radiology, Tokushima Red Cross Hospital, 103 Irinokuchi Komatsushima-cho, Komatsushima City, Tokushima, 773-8502, Japan.
authors.forename: Katsuya
authors.initials: K
authors.lastname: Takechi
authors.affiliation: Department of Radiological Technology, Tokushima Red Cross Hospital, 103 Irinokuchi Komatsushima-cho, Komatsushima City, Tokushima, 773-8502, Japan.
authors.forename: Hironobu
authors.initials: H
authors.lastname: Yonekura
authors.affiliation: Department of Radiology and Radiation Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Kuramoto-cho, Tokushima City, Tokushima, 770-8509, Japan.
authors.forename: Seiji
authors.initials: S
authors.lastname: Iwamoto
authors.affiliation: Department of Radiology (Diagnostic Radiology), Tokushima University Hospital, 2-50-1, Kuramoto-cho, Tokushima City, Tokushima, 770-8503, Japan.
authors.forename: Takayoshi
authors.initials: T
authors.lastname: Shinya
authors.affiliation: Department of Diagnostic Radiology, Tokushima University Graduate School of Health Science, 3-18-15, Kuramoto-cho, Tokushima City, Tokushima, 770-8509, Japan.
authors.forename: Shoichiro
authors.initials: S
authors.lastname: Takao
authors.affiliation: Department of Radiology and Radiation Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Kuramoto-cho, Tokushima City, Tokushima, 770-8509, Japan.
authors.forename: Masafumi
authors.initials: M
authors.lastname: Harada
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001652:Bile Ducts / Q000000981:diagnostic imaging*; D002779:Cholestasis / Q000628:therapy*; D004322:Drainage / Q000379:methods*; D005260:Female; D005471:Fluoroscopy / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011677:Punctures; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed
keywords: Percutaneous transhepatic biliary drainage; Procedure time; Ray Summation image; Virtual fluoroscopic preprocedural planning; Virtual fluoroscopy; X-ray fluoroscopy time