Evaluation of contrast enhancement patterns in XXXX by coded harmonic sonographic imaging with a microbubble contrast agent.

@entity1 @entity788 @entity706 @entity5 @entity189 @entity2967 @entity513 @entity12679
OBJECTIVE: The purpose of the study was to assess patterns of primary pancreatic lesions by contrast-enhanced sonography for differentiating @entity513 from other @entity788 . METHODS: One hundred six consecutive @entity1 with pancreatic masses, consisting of 83 @entity189 , 5 intraductal papillary mucinous @entity5 , 3 cases of autoimmune-related @entity788 , 3 solid @entity5 , 2 cases of chronic @entity788 , 1 @entity12679 , 1 @entity2967 , and 1 @entity706 , were examined by contrast-enhanced sonography with coded harmonic imaging in a phase inversion harmonic technique. The contrast enhancement patterns were assessed, and specimens removed during pancreatectomy were subjected to pathologic examination. RESULTS: Internal tumoral vascularity was detected in 47 (56.6%) of the 83 @entity513 . Vascular image spreading and homogeneous staining throughout the @entity5 were observed in all endocrine @entity189 . Two of the 5 intraductal papillary mucinous @entity5 were positive for enhancement effects. Enhancement effects were observed in all 3 cases of autoimmune-related @entity788 , but the degree varied. There was a significant correlation between the intensity of enhancement effects and the ratio of patent vessels in the @entity5 (P < .05). CONCLUSIONS: Vascularity was detected by contrast-enhanced sonography in only about half of the @entity513 , confirming the difficulty in distinguishing those @entity5 from other @entity788 . There was a correlation between the patency of the vessels in the @entity5 and their vascularity.
