title: [Preoperative T stage of non-small cell lung cancer: comparison of the efficacy of 64-MDCT versus 3.0T MR imaging].
abstract: OBJECTIVE
  To compare the diagnostic efficacies of 64-MDCT and 3.0-T MRI in determining the T stage of non-small cell lung cancer (NSCLC).
  
  
  METHODS
  Approval from the institutional ethics committee and informed consent from patients were obtained before the study started. 40 patients with NSCLC proved by pathology were enrolled in the study. All the 40 patients underwent non-enhanced MRI, enhanced MRI, and enhanced MDCT. Their T stages were preliminarily evaluated according to these imaging manifestations by 3 groups of experienced chest radiologists respectively, and correlated with that of postoperative pathology using the Kappa test. The diagnostic efficacies of these three imaging modalities for determining the T stage of NSCLC were compared using the McNemar test.
  
  
  RESULTS
  The preoperative diagnostic accuracy rate for the T stage of NSCLC was 85.0% (34 of 40) by non-enhanced MRI, 87.5% (35 of 40) by enhanced MRI, and 80.0% (32 of 40) by enhanced CT, showing no significant differences between the non-enhanced MRI and enhanced CT, enhanced MRI and enhanced CT, and non-enhanced MRI and enhanced MRI for determining the T stage of NSCLC (P>0.05).
  
  
  CONCLUSIONS
  Compared with the enhanced MDCT, non-enhanced MRI and enhanced MRI provide slightly superior diagnostic efficacy for the preoperative T staging of NSCLC. For the patients with intolerance to contrast medium on MDCT scan, 3.0T MRI may be an alternative for determining the preoperative T stage of NSCLC.
authors.affiliation: Department of Diagnostic Radiology, Cancer Institute & Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Tang
authors.affiliation: Department of Diagnostic Radiology, Cancer Institute & Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China.
authors.forename: Ning
authors.initials: N
authors.lastname: Wu
authors.affiliation: Department of Diagnostic Radiology, Cancer Institute & Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China.
authors.forename: Han
authors.initials: H
authors.lastname: Ouyang
authors.affiliation: Department of Diagnostic Radiology, Cancer Institute & Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China; Email: huangyao93@163.com.
authors.forename: Yao
authors.initials: Y
authors.lastname: Huang
authors.affiliation: Department of Diagnostic Radiology, Cancer Institute & Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China.
authors.forename: Li
authors.initials: L
authors.lastname: Liu
authors.affiliation: Department of Diagnostic Radiology, Cancer Institute & Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China.
authors.forename: Meng
authors.initials: M
authors.lastname: Li
authors.affiliation: Department of Diagnostic Radiology, Cancer Institute & Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China.
authors.forename: Lina
authors.initials: L
authors.lastname: Zhou
authors.affiliation: Department of Diagnostic Radiology, Cancer Institute & Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China.
authors.forename: Xiaojuan
authors.initials: X
authors.lastname: Xu
mesh_terms: D002289:Carcinoma, Non-Small-Cell Lung / Q000000981:diagnostic imaging* / Q000473:pathology*; D003287:Contrast Media; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D061330:Multidetector Computed Tomography; D009367:Neoplasm Staging; D057234:Preoperative Period
chemical_list: D003287:Contrast Media