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J Liver Cancer > Volume 14(2); 2014 > Article
Journal of Liver Cancer 2014;14(2):115-119.
DOI: https://doi.org/10.17998/jlc.14.2.115    Published online September 30, 2014.
Follow-up of Hepatocellular Carcinoma After Transarterial Chemoembolization; The Concordance of Contrast Enhanced Ultrasonography and Lipiodol CT
Gene Hyun Bok, Soung Won Jeong, Jae Young Jang, Sae Hwan Lee, Sang Gyune Kim, Sang-Woo Cha, Young Seok Kim, Young Deok Cho, Hong Soo Kim, Boo Sung Kim
Institution for Digestive Research, Digestive Disease Center, Department of Internal Medicine, Soonchunhyang University Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
Correspondence:  Jae Young Jang,
Email: jyjang@schmc.ac.kr
Abstract
Background/Aims
The aim of this study is to evaluate the concordance of contrast-enhanced ultrasonography (CEUS) and lipiodol computed tomography (L-CT) for the assessment of viable hepatocellular carcinoma (HCC) after transarterial chemoembolization (TACE).
Methods
We retrospectively reviewed the post-TACE CEUS and L-CT images of 65 consecutive HCCs in 41 patients to assess the presence of viable tumor tissue. Forty-seven HCCs in 31 patients that underwent post-TACE L-CT within 4 weeks of the CEUS examination were included. The degree of concordance between CEUS and L-CT and factors related to concordance were analyzed.
Results
The overall concordance of CEUS and LDCT was 78.7% (37/47). The concordance with L-CT for viable tumor and non-viable tumor tissue on CEUS was 95.2%, and 65.4% respectively (P<0.013). Diffuse tumors had a tendency for non-concordance (P=0.066). Although 3 of 4 lesions located in the hepatic dome were non-concordant, the sample size was too small to establish significance. The mean tumor size for concordant and non-concordant tumors was 2.9 and 3.0 cm, with no significant difference.
Conclusions
Although the concordance of CEUS and L-CT for viable tumor tissue was high, the concordance for non-viable tumor tissue was relatively low. Prospective studies using angiography as a gold standard should be performed in the future. (J Liver Cancer 2014;14:115-119)
Key Words: Contrast-enhanced ultrasonography; Lipiodol computed tomography; Hepatocellular carcinoma; Transarterial chemoembolization
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