CONCLUSION

MRI (DWI) is useful for differential diagnosis of benign and malignant lesions in the whole body.  MRI (DWI) can be available for the assessment of pulmonary masses, N factor, M factor and stage of lung cancer. MRI (DWI) is useful for mediastinal tumors, pleura lesions including malignant pleural mesothelioma, suture lesions after resection, and response evaluation of chemotherapy/radiotherapy of lung cancer.  MRI (DWI) can reduce medical cost of examination.  DWIBS can make examinations of lung cancer more simplified for lung cancer staging and post-therapeutic follow-up.