OBJECTIVE: The purpose of the study was to compare power Doppler sonography with intraarterial @entity515 -enhanced sonography for revealing vascularity in treated and untreated @entity99 . SUBJECTS AND METHODS: Fifty-five @entity1 with 93 @entity96 were prospectively examined with power Doppler sonography and @entity515 -enhanced sonography. These @entity5 included 29 @entity157 in @entity1 with no previous treatment, 26 treated @entity157 , and 38 @entity2695 . The vascular depiction of power Doppler sonography was compared with that obtained in the early phase of @entity515 -enhanced sonography. The results of angiography were also recorded for comparison. RESULTS: In the @entity157 , power Doppler sonography was the same as @entity515 -enhanced sonography in 18 (62%) of 29 @entity5 , was inferior to @entity515 -enhanced sonography in nine (31%) of 29 @entity5 , and was superior to @entity515 -enhanced sonography in two (7%) of 29 @entity5 . In the treated @entity157 , power Doppler sonography was the same as @entity515 -enhanced sonography in 15 (58%) of 26 @entity5 and was inferior in 11 (42%) of 26 @entity5 . In @entity2695 , the same vascularity was found in both studies in 15 (39%) of 38 @entity5 , @entity515 -enhanced sonography was superior in 22 (58%) of 38 @entity5 , and power Doppler sonography was superior in one (3%) of 38 @entity5 . As a whole, 45% of the 93 @entity5 showed better vascular depiction on @entity515 -enhanced sonography. However, 19.4% of @entity5 were hypovascular using power Doppler sonography but hypervascular using @entity515 -enhanced sonography. CONCLUSION: Power Doppler sonography is a useful technique for screening @entity99 vascularity. @entity515 -enhanced sonography is superior to power Doppler sonography in depicting @entity5 vascularity in treated @entity157 and in @entity2695 , especially small @entity2695 .

Assessment of vascularity in @entity99 : comparison of power Doppler sonography and intraarterial XXXX -enhanced sonography.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity96 :: ('MESH:D008113', 'Disease') :: ['liver tumors'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'tumors'] @entity2695 :: ('MESH:D006391', 'Disease') :: ['hemangiomas'] @entity515 :: ('CHEBI:29334', 'Chemical') :: ['CO(2)'] @entity157 :: ('MESH:D006528', 'Disease') :: ['hepatocellular carcinomas'] @entity99 :: ('MESH:D056486', 'Disease') :: ['hepatic tumors', 'hepatic tumor']
@entity515 :: (CHEBI:29334,Chemical) :: ['CO(2)']
