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Imaging the hepatic lymphatics: experimental studies in swine
J D Collins1, A C Disher, M L Shaver
1Department of Radiological Sciences, UCLA School of Medicine.
Journal of the National Medical Association
|March 1, 1993
Summary
This study visualizes hepatic lymphatics in swine using MRI, revealing their connection to the pulmonary ligament. Unligated hepatic lymphatics may cause post-surgical fluid buildup, suggesting cannulation as a solution.
Area of Science:
- Medical Imaging
- Anatomy
- Surgical Pathology
Background:
- Magnetic resonance (MR) imaging offers detailed soft tissue and surface anatomy visualization, ideal for medical education.
- Previous research in swine models indicated hepatic lymphatics connect to visceral pleural lymphatics via the pulmonary ligament.
Purpose of the Study:
- To visually and radiographically demonstrate hepatic lymphatic pathways in a swine model.
- To establish an anatomical-pathological correlation for teaching purposes.
- To investigate the hypothesis that unligated hepatic lymphatics contribute to postoperative complications.
Main Methods:
- Utilized 3-D MR reconstruction for detailed anatomical display.
- Reviewed surgical operative reports from UCLA School of Medicine regarding hepatic resections and transplantations.
- Proposed cannulation of hepatic lymphatics as a potential method to mitigate complications.
Main Results:
- Demonstrated the visual and radiographic display of hepatic lymphatics in a swine model.
- Identified that hepatic lymphatics are not ligated during standard hepatic surgeries.
- Hypothesized that unattached lymphatics may lead to postoperative ascites and right pleural effusions.
Conclusions:
- Hepatic lymphatic visualization via MR imaging is feasible in swine.
- Unligated hepatic lymphatics are a potential source of postoperative complications like ascites and pleural effusions.
- Cannulation of hepatic lymphatics may reduce postoperative complications and improve patient outcomes.