Abstract：Objective To determine whether the diagnostic performance of lung cancer staging by WB-DWI is superior to that of PETCT
in combination with craniocerebral MRI. Methods PET-CT in combination with craniocerebral MRI as well as WB-DWI were
used for lung cancer patients before surgery. Among them, 22 were squamous cell carcinomas, 6 were adenocarcinomas and 2 were
small cell lung cancer. The accuracy of lung cancer staging was analyzed by McNemar test and chi-square test. Results A total of 23
patients (76.67%) with pathological stage of N were correctly identified by PET-CT, with an estimated accuracy of 0.767. However, 2
(6.67%) were overstaged and 5 (16.67%) were understaged. 26 patients (86.67%) with pathological stage of N were correctly identified
by WB-DWI, with an estimated accuracy of 0.867. However, 1 (3.33%) was overstaged, and 3 (10%) were understaged. There was no
statistical difference between the two detection rates. There were 20 (66.67%) cases who could correctly determine the pathological
stage with PET-CT and brain MRI, and there were 3 (10%) overstaging cases and 7 (23.33%) understaging cases, and the accuracy of
staging was 0.667. There were 21 patients (70%) who could correctly be identified the pathological stage with WB-DWI, and there were
2 (6.67%) overstaging cases and 7 (23.33%) cases were underestimated, the staging accuracy was 0.7. There was no statistical difference
between the two detection rates. Conclusion WB-DWI is superior in staging diagnosis of lung cancer than PET-CT and brain MRI.
谈炎欢，李俊晨. 全身弥散加权成像与PET-CT及颅脑MRI在肺癌分期诊断中的对照研究[J]. 中国医疗设备, 2017, 32(12): 83-86.
TAN Yanhuan, LI Junchen. Comparative Study of Whole Body Diffusion Weighted Imaging with PET-CT
and Craniocerebral MRI in the Clinical Diagnosis of Lung Cancer Staging. China Medical Devices, 2017, 32(12): 83-86.
