摘要
Abstract
Objective To determine whether the diagnostic performance of lung cancer staging by WB-DWI is superior to that of PET-CT 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.关键词
磁共振成像/正电子发射断层扫描成像/全身弥散加权成像/肺癌/分期Key words
magnetic resonance imaging/positron emission tomography/diffusion weighted imaging/lung cancer/staging分类
医药卫生
