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Published on: June 8, 2018
Advanced hepatic ablation technique for creating complete cell death: irreversible electroporation
Edward W Lee1, Christine Chen, Veronica E Prieto
1Division of Interventional Radiology, Department of Radiology, Ronald Reagan Medical Center at UCLA, David Geffen School of Medicine at UCLA, 757 Westwood Plaza, Suite 2125, Los Angeles, CA 90095, USA. EdwardLee@mednet.ucla.edu
Radiology
|April 24, 2010
Summary
Irreversible electroporation (IRE) effectively ablates hepatic tissue, causing cell death via apoptosis while preserving surrounding structures. This minimally invasive technique is fast, safe, and potent in animal models.
Area of Science:
- Hepatobiliary surgery
- Minimally invasive procedures
- Interventional radiology
Background:
- Irreversible electroporation (IRE) is an emerging ablation technique.
- Understanding its efficacy and mechanisms in hepatic tissue is crucial.
Purpose of the Study:
- To evaluate IRE's effectiveness for hepatic tissue ablation.
- To correlate radiologic findings with pathological evidence of IRE-induced cell death.
Main Methods:
- 16 Yorkshire pigs underwent ultrasonography-guided IRE of normal liver.
- Ablation zones were imaged using US, MR, and CT.
- Immunohistochemical analysis (H-E, Von Kossa, vWF, TUNEL) assessed cell death and tissue preservation.
Main Results:
- Mean ablation zone diameter was 33.5 mm, achieved in 6.9 minutes.
- IRE zones were well-characterized by US, MR, and CT; US allowed real-time monitoring.
- Complete cell death with preserved bile ducts and vessels was observed, with apoptosis markers present.
Conclusions:
- IRE is a fast, safe, and potent ablation method in an animal model.
- It induces complete hepatic tissue death through apoptosis.
- Periablative structures like vessels and bile ducts remain preserved.
