不相干运动扩散加权成像对肺癌患者肺不张的影像诊断价值

摘要

目的 探讨磁共振体素内不相干运动扩散加权成像对肺癌患者肺不张的影像诊断价值.方法 选取四川省广元市中心医院收治的肺不张患者177例,其中由中央型肺癌导致的肺不张患者112例为试验组,由肺炎导致的肺不张患者65例对照组.2组患者均采用磁共振体素内不相干运动扩散加权成像技术检测中央型肺癌及肺炎肺不张,分析2组患者的影像相关参数.结果2组患者的磁共振体素内不相干运动扩散加权成像检测结果显示,在T2WI中中央型肺癌组织表达出高信号,阻塞不张的肺炎组织则为低信号,其信号强度存在差异,可依次对患者进行鉴别和分类.通过对比2组患者的肺部病变参数结果看出,试验组的D值、D*值分别为 (0.65±0.18) ×10-3mm2/s及 (19.76±6.24) ×10-3mm2/s,对照组的D值、D*值则为 (0.66±0.15) ×10-3mm2/s及 (20.13±8.31) ×10-3mm2/s.试验组D值及D*值均低于对照组,但是差异无统计学意义 (P＞ 0.05);而试验组与对照组患者的f (％) 值对比,差异有统计学意义 (t=-5.1751,P ＜0.05).结论 磁共振体素内不相干运动扩散加权成像对中央型肺癌肺不张具有较高的临床影像鉴别诊断价值.%Objective Diagnostic value of diffusion-weighted imaging with MRI in voxel pheromone for pulmonary atelectasis in patients with lung cancer. Methods A total of 177 patients with atelectasis admitted to Guangyuan Central Hospital of Sichuan Province were selected. Among them, 112 patients with pulmonary atelectasis caused by central lung cancer were experimental group, and patients with pulmonary atelectasis caused by pneumonia were 65 control subjects. In both groups, pleural MRI images of central lung cancer and pneumonia were detected by MR pheripherial incoherent motion diffusion weighted imaging. The image-related parameters of the two groups were analyzed. Results The results of diffusion-weighted imaging of MRI in voxels in both groups showed that central lung cancer tissues expressed high signals on T2 WI, while those in obstructed lung tissues had low signals, and their signal intensity was different. Patients are identified and classified. By comparing the parameters of lung lesions in the two groups of patients, the D value and D * value of the experimental group were (0.65 ± 0.18) × 10-3 mm2/s and (19.76 ± 6.24) × 10-3 mm2/s, respectively. The D value and D* value of the group were (0.66 ± 0.15) × 10-3 mm2/s and (20.13 ± 8.31) × 10-3 mm2/s; the data in the experimental group was lower than the control group, but the difference was not statistically significant (P＞ 0.05), f (％) value of the test group and the control group, the difference was statistically significant (t =-5.1751, P ＜ 0.05). Conclusion The diffusion-weighted imaging of incoherent motion in MRI voxels has high clinical diagnostic value for central pulmonary atelectasis.