Semiquantitative characterization of perfusion with contrast-enhanced ultrasound and perfusion analysis – comparison of hepatocellular carcinoma (HCC) and focal nodular hyperplasi…

Aims: Several imaging modalities are available for the detection of focal liver lesions. Due to the therapeutic implications differentiation between focal nodular hyperplasia (FNH) and hepatocellular carcinoma (HCC) is important. At the moment, there is only poor specificity of HCC-detection in tumors smaller than two centimeters. Focal nodular hyperplasia is a common benign tumor in normally younger female patients. Particularly in smaller FNH lesions the prescence of a central artery and the typical scarring, centrifugal progression of enhancement is missing. Therefore, efforts have to be made to optimize the…