Related Experiment Videos
[Biliary enhanced MR imaging by Gd-DTPA].
S Ohkawa1, Y Fujikura, T Kanai
1Department of Radiology, Hiratsuka City Hospital.
Summary
Biliary enhanced MRI (BEMRI) using Gd-DTPA effectively visualizes biliary obstruction and portal system in patients with obstructive jaundice. This technique may offer a comprehensive alternative to existing imaging modalities.
Area of Science:
- Radiology and Medical Imaging
- Gastroenterology
- Oncology
Context:
- Obstructive jaundice presents diagnostic challenges, often requiring multiple imaging techniques.
- Accurate visualization of the biliary tree and surrounding vasculature is crucial for treatment planning.
Purpose:
- To evaluate the efficacy of Biliary Enhanced MRI (BEMRI) using Gd-DTPA via percutaneous transhepatic biliary drainage (PTBD) tubes for visualizing obstructive jaundice.
- To assess the combined utility of BEMRI and MR angiography (MRA) in delineating biliary obstruction and portal system involvement.
Summary:
- BEMRI with Gd-DTPA via PTBD tubes clearly visualized the biliary tract as high signal intensity on T1-weighted images in 8 patients.
- Primary lesions like common bile duct cancer and the portal system were visualized concurrently.
- Combined BEMRI and 2D-time-of-flight MRA demonstrated portal encasement alongside biliary obstruction on a single image.
Impact:
- BEMRI with MRA offers a potential single-session, comprehensive imaging solution for obstructive jaundice.
- This integrated approach may streamline diagnosis and replace conventional multi-modality imaging protocols.
- Improved visualization of biliary and vascular structures can aid in surgical or interventional planning.