PURPOSE: The purpose of this study was to evaluate the effectiveness of contrast enhancement in the diagnosis of @entity99 . MATERIALS AND METHODS: 2761 cases involving CT of the liver and abdomen were analyzed using logistic analysis. CT was either helical-CT (SDCT) or multi-detector CT (MDCT), with power injector. RESULTS: Contrast enhancement use was 92% in @entity409 and 95% in @entity5 cases. A typical case involved a 66-year-old @entity1 given 2-4 ml/sec of contrast material using dual injection. CT imaging was done in the equilibrium stage. The use of contrast material was effective for the diagnosis of @entity96 except in the qualitative diagnosis of @entity157 with SDCT where the odds ratio was 0.084. CONCLUSION: Intravenous contrast enhancement was effective for the CT diagnosis of @entity99 . Dynamic CT was effective using MDCT, and dual injection of contrast material was also valid for SDCT. Multiphasic studies were needed for detecting @entity96 not only on MDCT but also on SDCT. CT imaging during the equilibrium phase alone is inadequate to document diagnosis of metastatic @entity96 . The addition of various phasic contrast materials during CT was effective in evaluating @entity96 that showed angiogenesis.

[Is intravenous contrast enhancement effective in improving CT diagnosis of XXXX ?].

@entity1 :: ('9606', 'Species') :: ['man'] @entity96 :: ('MESH:D008113', 'Disease') :: ['liver tumors', 'liver tumor'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor'] @entity409 :: ('MESH:D008107', 'Disease') :: ['liver disease'] @entity157 :: ('MESH:D006528', 'Disease') :: ['hepatocellular carcinoma'] @entity99 :: ('MESH:D056486', 'Disease') :: ['hepatic disease', 'hepatic tumor']
@entity99 :: (MESH:D056486,Disease) :: ['hepatic disease']
