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目的:探讨非均匀性脂肪肝超声图像特点,为超声技术对脂肪肝的诊断与鉴别提供依据。方法:回顾性分析77例确诊为非均匀性脂肪肝患者的声像图。结果:根据声像图表现,将非均匀性脂肪肝分为三型:弥漫非均匀浸润型(58.4%):大部分肝实质被脂肪浸润,残存小片状正常区为低回声。叶段浸润型(24.8%):致密高回声位于肝叶或肝段。局限浸润型(16.9%):显示为肝内局限性单个或多个小片状高回声区。彩色多普勒超声(CDFI)显示:异常回声区周围无血流环绕,内部无穿支样血流,部分异常回声区内显示与正常肝静脉或门静脉相延续的血流信号。结论:非均匀性脂肪肝的超声诊断有其声像图特点,可以较准确地进行诊断及鉴别诊断。
Objective: To investigate the characteristics of non-uniform fatty liver ultrasound images and provide the basis for the diagnosis and identification of fatty liver by ultrasound technique. Methods: A retrospective analysis of 77 patients diagnosed as non-uniform fatty liver in patients with sonography. Results: According to sonographic findings, non-uniform fatty liver was divided into three types: diffuse non-uniform infiltration type (58.4%): most of the liver parenchyma was infiltrated with fat and the remaining small platelet-like normal area was hypoechoic. Segment infiltrate (24.8%): dense hyperechoic located in the liver or liver segment. Localized infiltrate (16.9%): Shows localized intrahepatic single or multiple platelet hyperechoic areas. Color Doppler ultrasound (CDFI) showed that there was no blood flow around the abnormal echo zone, no perforating blood flow inside, and the blood flow signal in normal echo or normal hepatic vein or portal vein showed in some abnormal echo zones. Conclusion: Ultrasound diagnosis of non-uniform fatty liver has its sonographic features, which can diagnose and differentiate more accurately.