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弥漫性肝病的磁共振成像。肝脏脂肪与铁。

MR imaging of diffuse liver disease. Hepatic fat and iron.

作者信息

Siegelman E S

机构信息

Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA.

出版信息

Magn Reson Imaging Clin N Am. 1997 May;5(2):347-65.

PMID:9113679
Abstract

This article reviews the various disorders that result in abnormal iron and fat within the liver. MR techniques that detect and characterize fat and iron are discussed. Chemical shift images are useful in detecting intracellular lipid and can characterize diffuse hepatic steatosis as well as focal areas of fatty sparing and fatty infiltration. T2*-weighted gradient-echo sequences are useful in detecting hepatic iron. Typical imaging features of genetic hemochromatosis and hepatic iron from blood transfusions are described.

摘要

本文综述了导致肝脏内铁和脂肪异常的各种病症。讨论了检测和表征脂肪与铁的磁共振技术。化学位移成像在检测细胞内脂质方面很有用，并且可以表征弥漫性肝脂肪变性以及脂肪缺失和脂肪浸润的局灶性区域。T2*加权梯度回波序列在检测肝脏铁方面很有用。描述了遗传性血色素沉着症和输血所致肝脏铁沉积的典型影像学特征。

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