随着设备技术的不断提高及新扫描序列的开发,MRI对胸部疾病的诊断已越来越受到人们的重视。本文详细介绍了胸部MR成像技术、MRI诊断支气管肺癌瘤灶、淋巴结转移、纵隔等侵犯、远处转移及在支气管肺癌分期中的作用与限度。阐述了MRI在肺癌临床研究领域的应用及发展趋势。 With the continuous improvement of equipment technology and the development of new scanning sequences, the diagnosis of chest diseases by MRI has received more and more attention. This article describes in detail the chest MR imaging technology, MRI diagnosis of bronchial lung cancer, lymph node metastasis, mediastinal invasion, distant metastasis and bronchial lung cancer staging in the role and limits. The application of MRI in the clinical research of lung cancer and its development trend are described.