KMID : 1039320140140020115
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Journal of Liver Cancer 2014 Volume.14 No. 2 p.115 ~ p.119
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Follow-up of Hepatocellular Carcinoma After Transarterial Chemoembolization; The Concordance of Contrast Enhanced Ultrasonography and Lipiodol CT
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Bok Gene-Hyun
Jeong Soung-Won Jang Jae-Young Lee Sae-Hwan Kim Sang-Gyune Cha Sang-Woo Kim Young-Seok Kim Hong-Soo Kim Boo-Sung
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Abstract
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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.
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KEYWORD
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Contrast-enhanced ultrasonography, Lipiodol computed tomography, Hepatocellular carcinoma, Transarterial chemoembolization
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