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Journal of Ultrasound in Medicine, Vol 18, Issue 6 395-402, Copyright © 1999 by American Institute of Ultrasound in Medicine

JOURNAL ARTICLE

Ultrasonographic arterial portography with second harmonic imaging: evaluation of hepatic parenchymal enhancement with portal venous flow

Y. Kono, F. Moriyasu, T. Nada, Y. Suginoshita, T. Matsumura, Y. Toda, T. Nakamura and T. Chiba
Department of Gastroenterology and Hepatology, Kyoto University, School of Medicine, Japan.

Ultrasonographic arterial portography was evaluated with second harmonic and conventional gray scale imaging after the administration of 0.001 to 0.1 ml/kg of FS069 (Optison) in 10 dogs (four dogs with ligation of the portal vein branch) and two woodchucks with hepatocellular carcinomas. Harmonic imaging was required to obtain good liver parenchymal enhancement for ultrasonographic arterial portography to be useful. The tumors were visible as regions of greater enhancement after intravenous injection and as hypoechoic regions after superior mesenteric artery injection. The segments with portal vein ligation were not detected after intravenous injection but were clearly seen after superior mesenteric artery injection. Doppler signal measurement verified a significant difference between the portal vein and hepatic vein after superior mesenteric artery injection and in the femoral artery after intravenous versus superior mesenteric artery injection, demonstrating that minimal levels of FS069 pass through the liver.


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