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Demarcated, with posterior echo enhancement,[link widoczny dla zalogowanych], although the combination of history to consider liver cancer, but does not rule out cystic lesions possible. Ultrasound showed rapid arterial enhancement of the lesions , contrast agent and then quickly exit the portal of the echo is lower than the surrounding liver tissue lesions , the real focus was on It provides a more objective diagnosis and effective basis. 4 patients in this study of routine ultrasound showed solitary or multiple liver nodules echo slightly lower , in the context of cirrhosis or fatty liver ,[link widoczny dla zalogowanych], is difficult to determine the nature and difficult to identify with liver cancer . Ultrasound imaging showed that the liver nodules in the arterial phase , portal phase , and no abnormal enhancement of the real and (or) reduce the performance , suggesting a benign lesion, 2 cases confirmed by surgical stiffening of nodules. Cirrhotic nodule formation is the formation of false lobules caused by hardening of nodules and cirrhosis no significant difference in hemodynamics , therefore, the ultrasound imaging and simultaneous changes in the surrounding liver parenchyma . In this study, 2 cases of granulomatous lesions in ultrasound imaging showed the whole process in the arterial phase ,[link widoczny dla zalogowanych], portal phase and the substance of the lesions showed contrast agent filling defect is changed, consistent with those reported . In addition, substantial enhancement of the contrast agent in liver diffuse background is conducive to that routine ultrasound showed the lesion is not easy for a non- low- echo ,[link widoczny dla zalogowanych], especially small lesions . Reported 43 cases of liver cancer, number of lesions detected ultrasound contrast enhanced CT more than 39 , and most of the small lesions less than 1cm . Ultrasound imaging of the liver substance in favor of atypical early detection of focal lesions , especially malignant lesions. Ultrasound enhanced to some extent, the sensitivity of ultrasonic detection of blood flow , which can effectively reflect the tumor 's blood supply and perfusion type of atypical lesions identified and provide an effective basis to determine the nature and improve the diagnostic value.
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