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American Journal of Roentgenology, Vol 172, 403-407, Copyright © 1999 by American Roentgen Ray Society

ARTICLES

Proximal arterioportal shunting associated with hepatocellular carcinoma: features revealed by dynamic helical CT

JH Chen, JW Chai, CL Huang, HC Hung, WC Shen and SK Lee
Department of Radiology, Taichung Veterans General Hospital, Taiwan.

OBJECTIVE: This study investigated the findings revealed by dynamic helical CT of proximal arterioportal shunting associated with hepatocellular carcinoma. We also evaluated the diagnostic capability of this imaging technique to reveal the mass in patients with hepatocellular carcinoma. CONCLUSION: On dynamic helical CT, proximal arterioportal shunting altered liver perfusion and tumor enhancement. Heterogeneous enhancement of liver parenchyma and decreased enhancement of hepatomas diminished diagnostic capability on the arterial dominant phase image. However, with the addition of imaging in the arterial portal phase, lesion conspicuity improved.
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