Abstract
Purpose
The nonthermal irreversible electroporation (NTIRE) is a novel nonthermal tissue ablation technique by local application of high-voltage current within microseconds leading to a delayed apoptosis. The purpose of this experimental study was the first angiographic evaluation of the acute damage of renal vascular structure in NTIRE.
Methods
Results of conventional dynamic digital substraction angiography (DSA) and visualization of the terminal vascular bed of renal parenchyma by high-resolution X-ray in mammography technique were evaluated before, during, and after NTIRE of three isolated perfused porcine ex vivo kidneys.
Results
In the dedicated investigation, no acute vascular destruction of the renal parenchyma and no dysfunction of the kidney perfusion model were observed during or after NTIRE. Conspicuous were concentric wave-like fluctuations of the DSA contrast agent simultaneous to the NTIRE pulses resulting from NTIRE pulse shock wave.
Conclusion
The NTIRE offers an ablation method with no acute collateral vascular damage in angiographic evaluation.
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The authors declare that they have no conflicts of interest. This study was performed independently of the manufacturer of the devices used.
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Johann Jakob Wendler and Maciej Pech are contributed equally to this study.
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Wendler, J.J., Pech, M., Blaschke, S. et al. Angiography in the Isolated Perfused Kidney: Radiological Evaluation of Vascular Protection in Tissue Ablation by Nonthermal Irreversible Electroporation. Cardiovasc Intervent Radiol 35, 383–390 (2012). https://doi.org/10.1007/s00270-011-0187-x
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DOI: https://doi.org/10.1007/s00270-011-0187-x