Contrast-enhanced ultrasound (CEUS) follow-up after radiofrequency ablation or cryoablation of focal liver lesions: treated-area patterns and their changes over time

Objectives To describe the early patterns of liver lesions successfully treated with radiofrequency ablation (RFA) or cryoablation (CA) and their changes over time. Methods Twenty-two RFA-treated and 17 CA-treated patients underwent CEUS from week 1 to year 3 post-ablation. Patterns, margins and vol...

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Bibliographic Details
Published in:European radiology 2013-05, Vol.23 (5), p.1392-1400
Main Authors: Guibal, Aymeric, Bertin, Caroline, Egels, Sophie, Savier, Eric, Grenier, Philippe A., Lucidarme, Olivier
Format: Article
Language:English
Subjects:
Ablation
Aged
Catheter Ablation - methods
Contrast agents
Contrast Media
Cryosurgery - methods
Diagnostic Radiology
Female
France
Hepatitis
Humans
Imaging
Internal Medicine
Interventional Radiology
Liver cancer
Liver Neoplasms - diagnostic imaging
Liver Neoplasms - surgery
Longitudinal Studies
Magnetic resonance imaging
Male
Medicine
Medicine & Public Health
Metastasis
Middle Aged
Neuroradiology
Radiography
Radiology
Reproducibility of Results
Retrospective Studies
Sensitivity and Specificity
Tomography
Treatment Outcome
Tumors
Ultrasonic imaging
Ultrasonography - methods
Ultrasound
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Summary:Objectives To describe the early patterns of liver lesions successfully treated with radiofrequency ablation (RFA) or cryoablation (CA) and their changes over time. Methods Twenty-two RFA-treated and 17 CA-treated patients underwent CEUS from week 1 to year 3 post-ablation. Patterns, margins and volumes of RF-induced and cryolesions were evaluated and compared over time. Results After contrast enhancement, shortly after ablation, undefined margins with persistent enhancing small vessels penetrating >2 mm into the treated zone were significantly more frequent after CA (67 %) than RFA (22 %) ( P  
ISSN:0938-7994
1432-1084
DOI:10.1007/s00330-012-2702-0