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Annals of Surgical Oncology
Published in: Annals of Surgical Oncology 4/2007

01-04-2007

Experimental and Clinical Radiofrequency Ablation: Proposal for Standardized Description of Coagulation Size and Geometry

Authors: Stefaan Mulier, MD, Yicheng Ni, MD, PhD, Lars Frich, MD, Fernando Burdio, MD, Alban L. Denys, MD, Jean-François De Wispelaere, MD, Benoît Dupas, MD, PhD, Nagy Habib, MD, FRCS, Michael Hoey, PhD, Maarten C. Jansen, MD, Marc Lacrosse, MD, Raymond Leveillee, MD, Yi Miao, MD, PhD, Peter Mulier, Didier Mutter, MD, PhD, Kelvin K. Ng, MBBS, PhD, FRCSEd (Gen), Roberto Santambrogio, MD, Dirk Stippel, MD, Katsuyoshi Tamaki, MD, Thomas M. van Gulik, MD, Guy Marchal, MD, PhD, Luc Michel, MD, FACS

Published in: Annals of Surgical Oncology | Issue 4/2007

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Abstract

Background

Radiofrequency (RF) ablation is used to obtain local control of unresectable tumors in liver, kidney, prostate, and other organs. Accurate data on expected size and geometry of coagulation zones are essential for physicians to prevent collateral damage and local tumor recurrence. The aim of this study was to develop a standardized terminology to describe the size and geometry of these zones for experimental and clinical RF.

Methods

In a first step, the essential geometric parameters to accurately describe the coagulation zones and the spatial relationship between the coagulation zones and the electrodes were defined. In a second step, standard terms were assigned to each parameter.

Results

The proposed terms for single-electrode RF ablation include axial diameter, front margin, coagulation center, maximal and minimal radius, maximal and minimal transverse diameter, ellipticity index, and regularity index. In addition a subjective description of the general shape and regularity is recommended.

Conclusions

Adoption of the proposed standardized description method may help to fill in the many gaps in our current knowledge of the size and geometry of RF coagulation zones.
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Metadata
Title
Experimental and Clinical Radiofrequency Ablation: Proposal for Standardized Description of Coagulation Size and Geometry
Authors
Stefaan Mulier, MD
Yicheng Ni, MD, PhD
Lars Frich, MD
Fernando Burdio, MD
Alban L. Denys, MD
Jean-François De Wispelaere, MD
Benoît Dupas, MD, PhD
Nagy Habib, MD, FRCS
Michael Hoey, PhD
Maarten C. Jansen, MD
Marc Lacrosse, MD
Raymond Leveillee, MD
Yi Miao, MD, PhD
Peter Mulier
Didier Mutter, MD, PhD
Kelvin K. Ng, MBBS, PhD, FRCSEd (Gen)
Roberto Santambrogio, MD
Dirk Stippel, MD
Katsuyoshi Tamaki, MD
Thomas M. van Gulik, MD
Guy Marchal, MD, PhD
Luc Michel, MD, FACS
Publication date
01-04-2007
Publisher
Springer-Verlag
Published in
Annals of Surgical Oncology / Issue 4/2007
Print ISSN: 1068-9265
Electronic ISSN: 1534-4681
DOI
https://doi.org/10.1245/s10434-006-9033-9

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