title: [Hemodynamic study of primary hepatocellular carcinoma evolved from viral-induced cirrhosis using CT perfusion imaging].
abstract: OBJECTIVE
  To investigate the hemodynamic changes of primary hepatocellular carcinoma (HCC) evolved from hepatic cirrhosis using CT perfusion imaging.
  
  
  METHODS
  Thirty-two patients with primary hepatocellular carcinoma evolved from virus-induced fibrosis or cirrhosis underwent dynamic CT scanning of the target slices for 60 min. The perfusion parameters of the hepatic parenchyma and HCC including the blood flow (BF), blood volume (BV), mean transit time (MTT), permeability-surface area product (PS), hepatic arterial fraction (HAF), IRF time of arrival (IRF TO) were obtained. Paired-sample t test was used to determine the differences in the perfusion parameters between the hepatic parenchyma and the primary HCC mass.
  
  
  RESULTS
  Compared with hepatic BF (117.13-/+31.05 ml/100 mg/min), BV (14.73-/+3.91 ml/100 mg), PS (31.93-/+5.91 ml/100 mg/min), HAF (25.02-/+8.19%), MTT (12.79-/+3.31 s), IRF TO (3.14-/+1.09 s), the primary HCC mass showed significant increments in the BF (239.69-/+96.07 ml/100 mg/min), BV (20.26-/+6.73 ml/100 mg), PS (37.50-/+9.50 ml/100 mg/min), HAF (68.97-/+15.22%) with decreased MTT (7.17-/+1.38 s) and IRF TO (2.42-/+0.94 s). Significant differences were found in all the perfusion parameters between the hepatic parenchyma and HCC (P<0.05).
  
  
  CONCLUSIONS
  Liver perfusion parameters can represent the hemodynamic changes in the HCC derived from hepatic cirrhosis.
authors.affiliation: Medical Imaging Center, Fuzhou General Hospital of Nanjing Command, Fuzhou 350025, China. zhongqun85@126.com
authors.forename: Qun
authors.initials: Q
authors.lastname: Zhang
authors.forename: Xue-Lin
authors.initials: XL
authors.lastname: Zhang
authors.forename: Yu-Zhong
authors.initials: YZ
authors.lastname: Zhang
authors.forename: Guan-Xun
authors.initials: GX
authors.lastname: Cheng
authors.forename: Zi-Qian
authors.initials: ZQ
authors.lastname: Chen
mesh_terms: D000328:Adult; D000368:Aged; D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging / Q000209:etiology / Q000503:physiopathology*; D005260:Female; D006439:Hemodynamics; D006505:Hepatitis / Q000150:complications; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods; D008103:Liver Cirrhosis / Q000150:complications; D008113:Liver Neoplasms / Q000000981:diagnostic imaging / Q000209:etiology / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D010477:Perfusion / Q000379:methods*; D011856:Radiographic Image Enhancement / Q000295:instrumentation / Q000379:methods; D014057:Tomography, X-Ray Computed