A role for wire-guided intraduodenal ultrasonography using a catheter probe in the differential diagnosis of enlarged ampullary lesions

A role for wire-guided intraduodenal ultrasonography using a catheter probe in the differential diagnosis of enlarged ampullary lesions - A role for wire-guided IDUS using a catheter probe in the differential diagnosis of enlarged ampullary lesions

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000021253

Enrollment

Registered

2016-12-31

Start date

2011-10-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

enlarged ampullary lesions

Interventions

wire-guided intraduodenal US using a catheter probe

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: the presence of an enlarged AOV without definite cause as revealed by cross-sectional images (computed tomography [CT] or magnetic resonance imaging [MRI]) or endoscopic images during ERCP for the evaluation of patients with clinical symptoms of biliary obstruction (jaundice, abdominal pain, and fever); age >18 years; and the ability to provide informed consent.

Exclusion criteria

Exclusion criteria: Patients with a diagnosed cause of enlarged AOV revealed by cross-sectional images or endoscopic visualization and who had undergone any prior AOV procedure including sphincterotomy or biopsy

Design outcomes

Primary

Measure	Time frame
Evaluation for the accuracy of wire-guided intraduodenal US using a catheter US probe during ERCP, for the differential diagnosis of an enlarged AOV	—

Countries

Asia(except Japan)

Contacts

Public ContactYun Nah Lee

Department of Internal Medicine, Soon Chun Hyang University School of Medicine Digestive Disease Center and Research Institute, Department of Internal Medicine

yunnah@schmc.ac.kr+82-32-621-5094

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026