Percutaneous ultrasound-guided irreversible electroporation: A goat liver study

Liu,Ying; Xiong,Zhengai; Zhou,Wei; Hua,Yuanyuan; Li,Chengxiang; Yao,Chenguo

doi:10.3892/ol.2012.781

September 2012 Volume 4 Issue 3

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September 2012 Volume 4 Issue 3

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Article

Percutaneous ultrasound-guided irreversible electroporation: A goat liver study

Authors:
- Ying Liu
- Zhengai Xiong
- Wei Zhou
- Yuanyuan Hua
- Chengxiang Li
- Chenguo Yao
View Affiliations / Copyright

Affiliations: Department of Obstetrics and Gynecology, First Affiliated Hospital of Chongqing Medical University, Chongqing 40016, P.R. China, Department of Obstetrics and Gynecology, Second Affiliated Hospital of Chongqing Medical University, Chongqing 40010, P.R. China , State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Chongqing 400044, P.R. China
Pages: 450-454
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Published online on: June 29, 2012

https://doi.org/10.3892/ol.2012.781
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Abstract

Irreversible electroporation (IRE) is a new tumor ablation technique. Pulsed electric fields (PEFs) with permanent duration (100 µsec) permanently permeabilize the cell membrane, causing the formation of innumerable permanent nanopores in the cell membrane and leading to cell death. In this study, percutaneous IRE was performed on 24 goat livers under the guidance of ultrasonography (US). IRE-exposed tissues were pathologically examined and glucose-6-phosphatase (G-6-P) and succinodehydrogenase (SDH) staining were used to detect the activity and function of the endoplasmic reticulum and mitochondria of liver tissues at 0 and 24 h after IRE ablation. Tissue ablation responses were monitored in real-time with US in the percutaneous IRE group; the largest diameter of the ablation zones was measured immediately (D1) and after 24 h (D2). Following D2 measurement, the animals were sacrificed and the gross sections (D3) were measured. The pathological examination results showed complete tissue necrosis after 24 h instead of immediately following IRE. The largest long diameters measured by intraprocedural US immediately after IRE (D1, 39.58±2.13 mm) were larger than those measured by US after 24 h (D2, 37.07±3.51 mm) and in gross section measurements (D3, 36.44±2.04 mm; P<0.05). D1 showed a good linear correlation with D3 (r=0.949). We conclude from these studies that IRE is not an acute ablating effect which leads to cell death. If US-guided percutaneous IRE focused on the target liver areas accurately, physicians would be able to assess the extent of necrosis through the regression equation during the IRE ablation procedure, and evaluate whether sufficient electric field energy had been applied to the desired tissue. Assisted with US guiding and monitoring, the minimally invasive IRE procedure in intraperitoneal lesions may become an important tumor ablation technique.

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Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Percutaneous ultrasound-guided irreversible electroporation: A goat liver study

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