【摘要】 目的 :研究肺段病变磁共振扫描 (MRI)序列和参数的选择 ,探讨 MRI对肺段病变的显示优势。方法 :4 4例肺段病变病人均经病理、痰检结核菌证实。同时已查 X线或 CT。每位病人均行 3个序列的 MR检查 ,MR结果与CT、X线比较 ,观察病灶的外形、边缘、信号、支气管和邻近改变。结果 :MRI对病变肺段内结构提供更丰富的信息 ,斜冠状位或矢状位有利于显示支气管的改变 ;TR为 70 0～ 80 0的 T1 WI像能清晰显示增大的淋巴结 ;TSE序列的 T2 WI像对胸腔积液非常敏感。结论 :合适的序列和参数的 MR成像能与 CT和 X线互相补充 ,有助于肺段病变的诊断。更多还原

【Abstract】 Objective To study the selection of MR imaging sequence and parameter for the displaying of pulmonary segement lesions.And to iscuss the advantage of MR imaging for pulmonary segement lesions.Methods 44 patients with pulmonary segement lesions all proved pathologically.And have performed CT and X ray examination,then perform three sequences MR imaging.Compare the result with CT and X ray.Results MR imaging provide abundanceinformation for the displaying of the pulmonary inner structure.Oblique coronal picture and sagittal picture are best in displaying the change of bronchia.Conclusion MR imaging with suitable sequence and parameter can make up the CT and X ray picture to help diagnose of pulmonary segement lesions.更多还原