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Contrast Study On Hepatic Benign And Malignant Tumors With Contrast-enhanced Ultrasound And Contrast-enhanced CT

Posted on:2007-01-10Degree:MasterType:Thesis
Country:ChinaCandidate:J MengFull Text:PDF
GTID:2144360185952956Subject:Medical imaging and nuclear medicine
Abstract/Summary:PDF Full Text Request
Objective: To study the blood supply of hepatic tumors with pulse-inversion harmonic (PIH) imaging and a second-generation contrast agent (SonoVue). The dynamic contrast enhancement and echogenicity of contrast-enhanced ultrasound (CEUS) were recorded and compared with the results of contrast-enhanced CT respectively. The aim was to compare hemodynamics in hepatic tumors using the two technologies, analyze the characteristics of contrast enhancement and blood supply, evaluate their diagnostic value of liver lesions and clinical value in choosing the operation methods and assessing prognosis of hepatic carcinoma.Methods: In this study, ninety-four patients with 46 malignant lesions (12 hepatocellular carcinoma, 2 hepatic adenocarcinoma and 32 metastatic liver tumors) and 48 benign lesions (44 hepatic hemangioma, 2 adenomatous hyperplasia and 2 focal nodular hyperplasia) were examined with PIH imaging after an intravenous administration of SonoVue. All patients were fasting for eight to twelve hours before examinations. At first, 2D gray-scale sonography was used to depict the position, size, outline, inner echo, invade deep, the adjacencies rounding of liver lesions, then transformed to the...
Keywords/Search Tags:contrast-enhanced ultrasound, pulse-inversion harmonic imaging, hepatic tumor, contrast-enhanced CT, contrast agent
PDF Full Text Request
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