Contrast-enhanced ultrasound of histologically proven liver hemangiomas.

摘要: Differentiation of small and atypical hemangiomas from other hepatic masses using imaging methods can be difficult, especially in patients with underlying malignant disease. Therefore, contrast-enhanced ultrasound was assessed histologically confirmed respect to contrast-enhancing kinetics tumor characteristics. In 58 indeterminate lesions demonstrated at least 2 (ultrasound/computed tomography/magnetic resonance imaging), ultrasound-guided liver biopsy revealed hemangioma. all a neoplasm had been suspected because disease (n = 41), cirrhosis 15), or growth the lesion 2). All underwent nonlinear, low mechanical index real-time scanning bolus injections SonoVue. Peripheral nodular arterial enhancement detected 43 (74%), whereas typical metastatic peripheral rim-like not observed all. Strong homogenous found 9 (16%) patients. 6 (10%), contrast pattern could determined very size fibrotic nodules. Forty-five (78%) showed centripetal filling within 180 seconds. Conclusion: Contrast-enhanced demonstrates hemangioma characteristics, that is, iris-diaphragm sign high percentage undetermined lesions. This technique may therefore improve noninvasive functional characterization differentiation hemangiomas. (HEPATOLOGY 2007;45:1139–1145.)