title: [Helical dual-phase CT scan in evaluating blood supply of primary heptocellular carcinoma after transcatheter hepatic artery chemoembolization with lipiodol].
abstract: OBJECTIVE
  To evaluate the blood supply of low density viable area of primary heptocellular carcinoma after transcatheter hepatic artery chemoembolization using lipiodol (LP-TACE), by helical dual-phase CT scanning and three dimensional CT (3DCT).
  
  
  METHODS
  Thirty-four patients with primary heptocellular carcinoma after LP-TACE were examined by hepatic helical dual-phase CT. 3DCT model of the maximum intensity projection (MIP), surface shaded display (SSD) reconstruction of the hepatic artery and portal vein were simultaneously done in 5 cases.
  
  
  RESULTS
  Viable tumor areas of 34 cases of primary heptocellular carcinoma after LP-TACE were divided into four types: peripheral, lateral, central and diffused types. Enhanced tumor vessel or tissue in viable tumor area was found during hepatic dual-phase in 17 cases, during hepatic artery-phase only in 8 and hepatic portal vein-phase only in 3. The viable tumor areas were found to have blood supply from the hepatic vein in 2 cases. The viable tumor area unenhanced during hepatic dual-phase was found in 6 cases. In 5 cases, the relation between the viable tumor area and branches of hepatic artery and portal vein was showed by MIP and SSD of hepatic artery and portal vein.
  
  
  CONCLUSIONS
  Hepatic helical dual-phase CT scan with 3DCT is effective in evaluating the blood supply of viable tumor areas and the therapeutic effect of primary heptocellular carcinoma after LP-TACE.
authors.affiliation: CT Division, Second Hospital, Guangzhou Medical College, Guangzhou 510260, China.
authors.forename: Li-lian
authors.initials: LL
authors.lastname: Tan
authors.forename: Yang-bin
authors.initials: YB
authors.lastname: Li
authors.forename: De-ji
authors.initials: DJ
authors.lastname: Chen
authors.forename: Shu-xin
authors.initials: SX
authors.lastname: Li
authors.forename: Jin-dai
authors.initials: JD
authors.lastname: Jiang
authors.forename: Zhi-ming
authors.initials: ZM
authors.lastname: Li
mesh_terms: D000328:Adult; D000368:Aged; D006528:Carcinoma, Hepatocellular; D002404:Catheterization; D016461:Chemoembolization, Therapeutic; D003287:Contrast Media; D005260:Female; D006499:Hepatic Artery; D006801:Humans; D007459:Iodized Oil; D008113:Liver Neoplasms / Q000000981:diagnostic imaging / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D036542:Tomography, Spiral Computed
chemical_list: D003287:Contrast Media; D007459:Iodized Oil