超顺磁性氧化铁在肝脏局灶性病变中的诊断价值

目的　探讨菲力磁增强在肝脏结节性病变中的诊断价值。方法　对 2 0例肝脏结节性病变进行常规肝脏平扫和菲力磁增强扫描 ,分析增强前后T2 WI检测病灶数目以及肝脏、病灶信号强度的变化。结果　菲力磁增强明显降低正常肝脏的信号强度 ,而病灶的信号强度无明显变化 ,病灶 -肝脏的信号强度比增加 ;菲力磁增强可清晰地显示病变并可发现更多病变。结论　菲力磁增强在检测肝脏结节性病变中敏感性高

Evaluation of Feridex-enhanced MRI in the Diagnosis of Focal Hepatic Lesions

Objective To evluate Feridex-enhanced MRI in the diagnosis of focal hepatic lesions. Methods Conventional plain and Feridex-enhanced MR scanning was performed in 20 cases with suspected hepatic neoplasm.The number of lesions on T 2WI ,and the signal intensity of liver and lesions demonstrated on plain and enhanced scans were observed and analyzed.Results After the injection of Feridex,the signal intensity of normal liver tissue reduced significantly,while the signal intensity of lesions showed no marked changes,Feridex-enhanced MRI clearly displayed more lesions on T 2WI than plain scanning did.Conclusion Feridex-enhanced MRI is very sensitive in detecting focal hepatic lesions.