Assessment of the ablated area after radiofrequency ablation by contrast-enhanced sonography; comparison with virtual sonography with magnetic navigation.
This study investigated whether contrast-enhanced sonography can accurately predict the ablated area by radiofrequency ablation using virtual sonography by computed tomography as a gold standard. Thirty-one hepatocellular carcinoma nodules were treated by radiofrequency ablation and then examined. The defect of contrast-enhanced sonography (puncture direction: r=.868, P<.0001; perpendicular direction; r=.925, P<.0001) was closely correlated with the unenhanced area of virtual sonography. Contrast-enhanced sonography can be used for early and accurate prediction of the ablated area and is helpful for assessing local control of radiofrequency ablation.
Koda
Masahiko
M
Second Department of Internal Medicine, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan. masakoda@grape.med.tottori-u.ac.jp
Mandai
Mari
M
Matono
Tomomitu
T
Sugihara
Takaaki
T
Nagahara
Takakazu
T
Ueki
Masaru
M
Ohyama
Kenji
K
Hosho
Keiko
K
Murawaki
Yoshikazu
Y
D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging* / Q000601:surgery*; D003287:Contrast Media; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery*; D008280:Magnetics; D008297:Male; D008875:Middle Aged; D011134:Polysaccharides; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D025321:Surgery, Computer-Assisted / Q000379:methods*; D016896:Treatment Outcome; D014463:Ultrasonography / Q000379:methods*
D003287:Contrast Media; D011134:Polysaccharides; C059891:SHU 508