title: Hepatocellular carcinoma after radiofrequency ablation therapy: dynamic CT evaluation of treatment.
abstract: The aim of this study is to analyze the dynamic CT findings after radiofrequency (RF) ablation for hypervascular hepatocellular carcinoma (HCC). RF ablation was used for 22 tumors in 20 patients. Peripheral enhancement was noted in 89% of regions within 1 month in the arterial phase. In 1-3 months, peripheral enhancement remained at 56% and was reduced to 22% by 3-6 months. It is difficult to determine the therapeutic result within 3 months due to continued peripheral enhancement in the arterial phase.
authors.affiliation: Division of Diagnostic Radiology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, 980-8574, Sendai, Japan. mtsuda@rad.tohoku.ac.jp
authors.forename: M
authors.initials: M
authors.lastname: Tsuda
authors.forename: K
authors.initials: K
authors.lastname: Majima
authors.forename: T
authors.initials: T
authors.lastname: Yamada
authors.forename: H
authors.initials: H
authors.lastname: Saitou
authors.forename: T
authors.initials: T
authors.lastname: Ishibashi
authors.forename: S
authors.initials: S
authors.lastname: Takahashi
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging* / Q000601:surgery*; D017115:Catheter Ablation / Q000379:methods; D003287:Contrast Media; D005260:Female; D006801:Humans; D007090:Image Interpretation, Computer-Assisted; D008113:Liver Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic / Q000379:methods; D011379:Prognosis; D011856:Radiographic Image Enhancement / Q000379:methods*; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods*; D016896:Treatment Outcome
chemical_list: D003287:Contrast Media