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CardioVascular and Interventional Radiology

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01-06-2014 | Clinical Investigation

Coil-Assisted RFA of Poorly Visible Liver Tumors: Effectiveness and Risk Factors of Local Tumor Progression

Authors: Geoffroy Farouil, Frederic Deschamps, Antoine Hakime, Thierry de Baere

Published in: CardioVascular and Interventional Radiology | Issue 3/2014

Abstract

Objectives

This study was designed to determine the effectiveness of a percutaneously inserted coil as a landmark before radiofrequency ablation (RFA) of poorly visible liver tumors on unenhanced computed tomography and ultrasound.

Methods

This was a single-center, retrospective study of 46 consecutive patients treated from January 2008 to June 2012 with RFA under CT guidance for 57 poorly visible liver tumors after percutaneous coil insertion. Effectiveness was evaluated by the rate of local tumor progression (LTP), and the risk factors of LTP were evaluated by multiple univariate analysis.

Results

After a mean follow-up of 15.9 months, the overall rate of LTP was 22.8 % (13/57). An increase in the distance between the coil and the center of the tumor was a predictive factor of LTP (p = 0.005) and resulted in an increase in time to place the RFA probe. LTP was significantly reduced in case of coil placed within the tumor (10 vs. 43.5 %, p = 0.009).

Conclusions

The effectiveness of the “coil-assisted” RFA for poorly visible liver tumors is improved by centering the coil in the tumor in order to facilitate the placement of the RFA probe and equal to the results of RFA under direct image guidance.

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Title: Coil-Assisted RFA of Poorly Visible Liver Tumors: Effectiveness and Risk Factors of Local Tumor Progression
Authors: Geoffroy Farouil
Frederic Deschamps
Antoine Hakime
Thierry de Baere
Publication date: 01-06-2014
Publisher: Springer US
Published in: CardioVascular and Interventional Radiology / Issue 3/2014
Print ISSN: 0174-1551
Electronic ISSN: 1432-086X
DOI: https://doi.org/10.1007/s00270-013-0717-9

At a glance: The STEP trials

Springer Medicine

Coil-Assisted RFA of Poorly Visible Liver Tumors: Effectiveness and Risk Factors of Local Tumor Progression

Abstract

Objectives

Methods

Results

Conclusions

At a glance: The STEP trials

Springer Medicine

Abstract

Objectives

Methods

Results

Conclusions

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