title: Intra-arterial carbon dioxide-enhanced ultrasonogram of hepatocellular carcinoma treated by transcatheter arterial embolization and percutaneous ethanol injection therapy.
abstract: The purpose of this study was to investigate the value of carbon dioxide-enhanced ultrasonography (CO2-US) in the evaluation of viable hepatocellular carcinomas (HCC) which were treated by transcatheter arterial embolization (TAE), percutaneous ethanol injection (PEI), or a combination treatment (TAE and PEI). Forty-one patients with 66 HCC were included in the study. They underwent CO2-US and angiography were performed in all tumours after they were treated by TAE, PEI or a combination treatment. Forty-six tumours were positively enhanced by CO2-US and 40 of them were positive by angiography. These 46 tumours were proved to be viable tumours either by biopsy or by follow-up studies. The positive predictive value was 100% for CO2-US and 87.8% in angiography. Twenty tumours were negative by CO2-US and these were also negative by angiography. Carbon dioxide-enhanced ultrasonography is a more reliable method for detecting the viable portion of the treated HCC compared with conventional angiography.
authors.affiliation: Department of Radiology, Taipei Municipal Jen-Ai Hospital, Taiwan.
authors.forename: R C
authors.initials: RC
authors.lastname: Chen
authors.forename: C K
authors.initials: CK
authors.lastname: Wang
authors.forename: L C
authors.initials: LC
authors.lastname: Chiang
authors.forename: H Y
authors.initials: HY
authors.lastname: Lo
authors.forename: S J
authors.initials: SJ
authors.lastname: Duh
authors.forename: W T
authors.initials: WT
authors.lastname: Chen
authors.forename: H Y
authors.initials: HY
authors.lastname: Tu
authors.forename: L Y
authors.initials: LY
authors.lastname: Liao
authors.forename: C S
authors.initials: CS
authors.lastname: Wang
authors.forename: P H
authors.initials: PH
authors.lastname: Chen
mesh_terms: D000328:Adult; D000368:Aged; D015901:Angiography, Digital Subtraction; D002245:Carbon Dioxide; D006528:Carcinoma, Hepatocellular / Q000098:blood supply / Q000000981:diagnostic imaging* / Q000628:therapy*; D004621:Embolization, Therapeutic; D000431:Ethanol / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D015552:Injections, Intralesional; D008113:Liver Neoplasms / Q000098:blood supply / Q000000981:diagnostic imaging* / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D014463:Ultrasonography / Q000379:methods
chemical_list: D002245:Carbon Dioxide; D000431:Ethanol