| Assessment of the Ablated Area after Radiofrequency Ablation by the Spread of Bubbles: Comparison with Virtual Sonography with Magnetic Navigation. | |
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MedLine Citation:
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PMID: 22086693 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Background/Aims: The purpose of this study was to investigate whether bubble images after radiofrequency ablation (RFA) can predict the ablated area. Methodology: The spread of bubbles 5 minutes after RFA were compared with the unenhanced area of virtual sonography with magnetic navigation in two RFA methods: expandable needle and cool-tip needle. Results: Thirty-one hepatocellular carcinoma nodules were treated by RFA with either an expandable needle or cool-tip needle (n=14 and n=17, respectively) and examined. In the 14 nodules treated by expandable needle, bubble images (puncture direction; r=0.833, p=0.0002, perpendicular direction; r=0.803, p=0.0005) were closely correlated with the unenhanced area of virtual sonography. On the other hand, in 17 nodules treated by cool-tip needle, there was no correlation between the bubble images and virtual sonography (puncture direction; r=0.590, p=0.0127, perpendicular direction; r=0.342, p=0.180). Conclusions: The observation of bubbles with the expandable needle can accurately predict the ablated area and is helpful for assessing local control of RFA. |
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Authors:
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Masahiko Koda; Mari Mandai; Tomomitu Matono; Takaaki Sugihara; Takakazu Nagahara; Masaru Ueki; Kenji Ohyama; Keiko Hosho; Yoshikazu Murawaki |
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Publication Detail:
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Type: JOURNAL ARTICLE |
Journal Detail:
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Title: Hepato-gastroenterology Volume: 58 ISSN: 0172-6390 ISO Abbreviation: - Publication Date: 2011 Nov |
Date Detail:
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Created Date: 2011-11-16 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8007849 Medline TA: Hepatogastroenterology Country: - |
Other Details:
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Languages: ENG Pagination: 1638-1642 Citation Subset: - |
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