Hepatocellular carcinoma: Power Doppler US with a contrast agent - Preliminary results
- Authors
- Kim A.Y.; Choi B.I.; Kim T.K.; Han J.K.; Yun E.J.; Lee K.Y.; Han M.C.
- Issue Date
- 1998
- Publisher
- Radiological Society of North America Inc.
- Keywords
- Contrast media; Galactose; Liver neoplasms, blood supply; Ultrasound (US), contrast media; Ultrasound (US), power Doppler studies
- Citation
- Radiology, v.209, no.1, pp 135 - 140
- Pages
- 6
- Indexed
- SCOPUS
- Journal Title
- Radiology
- Volume
- 209
- Number
- 1
- Start Page
- 135
- End Page
- 140
- URI
- https://scholarworks.korea.ac.kr/kumedicine/handle/2020.sw.kumedicine/25024
- DOI
- 10.1148/radiology.209.1.9769824
- ISSN
- 0033-8419
1527-1315
- Abstract
- PURPOSE: To investigate the value of contrast material-enhanced power Doppler ultrasonography (US) in the demonstration and characterization of tumor vascularity in hepatocellular carcinoma (HCC). MATERIALS AND METHODS: Twenty patients with HCC were prospectively evaluated with power Doppler US before and after injection of the contrast agent SH U 508 A. The grade and pattern of tumor vascularity at power Doppler US were analyzed, along with the degree of tumor staining at angiography. RESULTS: Intra- and peritumoral flow signals were detected in 19 HCCs (95%) at unenhanced power Doppler US. After injection of contrast agent, flow signals increased in 19 lesions (95%). At contrast-enhanced power Doppler US, two tumors demonstrated grade 1 vascularity; four grade 2; three, grade 3; and 11, grade 4. At angiography, two tumors demonstrated grade 1 staining; four grade 2; eight, grade 3; six, grade 4. The correlation between vascularity grades at contrast-enhanced power Doppler US and at angiography was statistically significant (P < .0001). Seventeen HCCs (85%) showed the intratumoral or basket pattern of vascularity at unenhanced power Doppler US; after injection of contrast material, 15 HCCs (75%) showed the mixed pattern. CONCLUSION: Contrast- enhanced power Doppler US is superior to unenhanced power Doppler US in the demonstration and characterization of tumor vascularity in HCC.
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- Appears in
Collections - 2. Clinical Science > Department of Radiology > 1. Journal Articles
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