title: Spectral and color Doppler sonography.
abstract: Color Doppler sonography has become an integral part of modern hepatic sonography. Color Doppler can enhance the conspicuity of focal lesions and bile ducts in jaundiced patients by illuminating normal vessels with flow. Spectral and color Doppler may prove useful in limiting the sonographic differential diagnosis of focal liver lesions. Color flow sonography effectively evaluates pseudoaneurysms, A-V fistulae, collaterals, and flow reversal in portal hypertension, venous clot and tumor invasion, Budd-Chiari syndrome, hereditary hemorrhagic telangiectasis, and many other hepatic vascular lesions. We have found it invaluable in evaluating cirrhotic and liver transplant patients.
authors.affiliation: Department of Radiology, USC School of Medicine, Los Angeles 90033.
authors.forename: P W
authors.initials: PW
authors.lastname: Ralls
authors.forename: L A
authors.initials: LA
authors.lastname: Mack
mesh_terms: D001652:Bile Ducts / Q000000981:diagnostic imaging*; D001783:Blood Flow Velocity; D006801:Humans; D006975:Hypertension, Portal / Q000000981:diagnostic imaging; D008099:Liver / Q000000981:diagnostic imaging*; D008102:Liver Circulation; D008107:Liver Diseases / Q000000981:diagnostic imaging; D016031:Liver Transplantation; D011168:Portal System / Q000000981:diagnostic imaging; D014463:Ultrasonography