title: [Combined color Doppler and pulsed Doppler in the diagnosis of small hepatocellular carcinomas].
abstract: The combined studies by using color Doppler (CD) and pulsed Doppler (PD) technique in 56 patients with 71 solid hepatic lesions smaller than 3 cm in diameter were carried out. The detecting rates of arterial signals in small hepatocellular carcinomas (sHCC) group, hepatic cavernous hemangiomas (HCH) group and others group were 86.9%, 37% and 33% respectively. Whereas, the average value of resistance index (RI) in sHCC group was very higher than that in other groups. By using combined CD and PD space-taking lesions of the liver are tentatively diagnosed as sHCC under conditions of color flow, arterial signals, and a RI of more than 50%. The specificity (96%) and accuracy (90%) of the diagnosis superior to the conventional US (P < 0.005).
authors.affiliation: Zhong-shan Hospital, Shanghai.
authors.forename: W P
authors.initials: WP
authors.lastname: Wang
authors.forename: Z Z
authors.initials: ZZ
authors.lastname: Xu
authors.forename: S C
authors.initials: SC
authors.lastname: Shen
mesh_terms: D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging*; D005260:Female; D006392:Hemangioma, Cavernous / Q000000981:diagnostic imaging; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D012680:Sensitivity and Specificity; D018615:Ultrasonography, Doppler, Color; D018617:Ultrasonography, Doppler, Pulsed