Well-Differentiated Hepatocellular Carcinoma: Triple-Phase Helical CT Findings.
10.3348/jkrs.2002.47.3.285
- Author:
Jee Hee KANG
1
;
Seung Hoon KIM
;
Jae Hoon LIM
;
Hyo Keun LIM
;
Won Jae LEE
;
Soon Jin LEE
;
Jae Woo YEON
;
Jae Min CHO
;
Dong Il CHOI
;
Seung Kwon KIM
;
Ha Na KIM
;
Gab Choul KIM
Author Information
1. Department of Radiology and Gastrointestinal Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Korea. shkim@smc.samsung.co.kr
- Publication Type:Original Article
- Keywords:
Liver, CT;
Liver neoplasms, diagnosis;
Compated tomography (CT), helical
- MeSH:
Carcinoma, Hepatocellular*;
Humans;
Retrospective Studies;
Tomography, Spiral Computed*
- From:Journal of the Korean Radiological Society
2002;47(3):285-292
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To determine the imaging characteristics of well-differentiated hepatocellular carcinomas (HCCs), as seen at triple-phase helical CT. MATERIALS AND METHODS: Thirty-eight well-differentiated HCCs in 29 patients who underwent surgical resection comprised our study population. Triple-phase helical CT images were obtained at 30 seconds, 70 seconds, and 3 minutes after contrast injection, and HCCs were divided into four groups according to their size: smaller than 1 cm (n=12), 1-2 cm (n=15), 2-4 cm (n=8), and larger than 4 cm (n=3), The enhancement patterns of HCCs at triple-phase helical CT were retrospectively analysed. RESULTS: In the smaller than l cm group, the most common enhancement pattern at all three phases was iso-attenuation (n=8; 67%). In the 1-2 cm group, iso-attenuation (n=10; 67%) was most common during the arterial phase and slightly low attenuation during the portal and equilibrium phases while in the 2-4 cm group, high attenuation (n=6; 75%) was most common during the arterial and portal phases, and low attenuation during the equilibrium phase (n=6; 75%). Two (67%) of three cases in the larger than 4 cm group demonstrated low, including fatty, attenuation. The detection rate was 33% (4/12) in the smaller than 1 cm group, 87% (13/15) in the 1-2 cm group and 100% (11/11) in the 2-4 cm and larger than 4 cm groups. CONCLUSION: At triple-phase helical CT, the enhancement patterns of well-differentiated HCCs were diverse, and the detection rate of those larger than 1 cm was 92% (24/26).
