title: Ultrasonographic arterial portography with second harmonic imaging: evaluation of hepatic parenchymal enhancement with portal venous flow.
abstract: 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.
authors.affiliation: Department of Gastroenterology and Hepatology, Kyoto University, School of Medicine, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Kono
authors.forename: F
authors.initials: F
authors.lastname: Moriyasu
authors.forename: T
authors.initials: T
authors.lastname: Nada
authors.forename: Y
authors.initials: Y
authors.lastname: Suginoshita
authors.forename: T
authors.initials: T
authors.lastname: Matsumura
authors.forename: Y
authors.initials: Y
authors.lastname: Toda
authors.forename: T
authors.initials: T
authors.lastname: Nakamura
authors.forename: T
authors.initials: T
authors.lastname: Chiba
mesh_terms: D000418:Albumins / Q000008:administration & dosage; D000818:Animals; D001783:Blood Flow Velocity; D003287:Contrast Media / Q000008:administration & dosage; D004285:Dogs; D005466:Fluorocarbons / Q000008:administration & dosage; D007269:Injections, Intra-Arterial; D007275:Injections, Intravenous; D008863:Microspheres; D011169:Portal Vein / Q000000981:diagnostic imaging* / Q000502:physiology; D011172:Portography / Q000379:methods*; D015203:Reproducibility of Results; D018617:Ultrasonography, Doppler, Pulsed
chemical_list: D000418:Albumins; D003287:Contrast Media; C099458:FS 069; D005466:Fluorocarbons