Hepatocellular carcinoma in cirrhotic patients at multidetector CT: hepatic venous phase versus delayed phase for the detection of tumour washout.

Published

Journal Article

OBJECTIVES: Our aim was to compare retrospectively hepatic venous and delayed phase images for the detection of tumour washout during multiphasic multidetector row CT (MDCT) of the liver in patients with hepatocellular carcinoma (HCC). METHODS: 30 cirrhotic patients underwent multiphasic MDCT in the 90 days before liver transplantation. MDCT was performed before contrast medium administration and during hepatic arterial hepatic venous and delayed phases, images were obtained at 12, 55 and 120 s after trigger threshold. Two radiologists qualitatively evaluated images for lesion attenuation. Tumour washout was evaluated subjectively and objectively. Tumour-to-liver contrast (TLC) was measured for all pathologically proven HCCs. RESULTS: 48 HCCs were detected at MDCT. 46 of the 48 tumours (96%) appeared as either hyper- or isoattenuating during the hepatic arterial phase subjective washout was present in 15 HCCs (33%) during the hepatic venous phase and in 35 (76%) during the delayed phase (p<0.001, McNemar's test). Objective washout was present in 30 of the 46 HCCs (65%) during the hepatic venous phase and in 42 of the HCCs (91%) during the delayed phase (p=0.001). The delayed phase yielded significantly higher mean TLC absolute values compared with the hepatic venous phase (-16.1±10.8 HU vs -10.5±10.2 HU; p<0.001). CONCLUSIONS: The delayed phase is superior to the hepatic venous phase for detection of tumour washout of pathologically proven HCC in cirrhotic patients.

Full Text

Duke Authors

Cited Authors

  • Furlan, A; Marin, D; Vanzulli, A; Patera, GP; Ronzoni, A; Midiri, M; Bazzocchi, M; Lagalla, R; Brancatelli, G

Published Date

  • May 2011

Published In

Volume / Issue

  • 84 / 1001

Start / End Page

  • 403 - 412

PubMed ID

  • 21081569

Pubmed Central ID

  • 21081569

Electronic International Standard Serial Number (EISSN)

  • 1748-880X

Digital Object Identifier (DOI)

  • 10.1259/bjr/18329080

Language

  • eng

Conference Location

  • England