多层面螺旋CT图像重建判断中心型肺癌支气管受侵及可切除性

目的利用多层面螺旋CT(MSCT)的图像重建技术,综合判断中心型肺癌侵犯支气管的情况及可切除性.方法对30例中心型肺癌病人进行MSCT检查,对与肺叶切除或全肺切除有关的支气管进行图像重建.采用评分法评价横断面CT和MSCT图像重建两种检查方法的肿瘤与支气管的关系,并比较其准确度、灵敏度、特异度、阳性预测值和阴性预测值.结果共对66条相关的支气管进行了研究.MSCT图像重建判断支气管与肿瘤关系的准确率高于横断面CT(0.01＜P＜0.05),预测支气管不能切除的阳性预测值也高于横断面CT(0.01＜P＜0.05).结论 MSCT图像重建判断中心型肺癌支气管受侵及可切除性的方法是可行的,且优于横断面CT.

The use of multi-slice spiral CT to predict bronchial involvement from central lung cancer

Objective: To assess the accuracy of multi-slice spiral CT (MSCT) with imaging reconstruction in judging bronchial involvement from central lung cancer. Methods: MSCT was done in 30 patients who were diagnosed as central lung cancer. Images of bronchi related to lobectomy or pneumonectomy were reconstructed by means of imaging processing techniques. Then the relation between tumor and bronchus was assessed prospectively with both axial CT and CT with imaging reconstruction in comparison with subsequent pathologic and surgical findings. Results: All 30 patients underwent thoracotomy, lobectomy or pneumonectomy. Total 66 bronchi were studied. Compared with axial CT images, CT with imaging reconstruction was better in judging the relation of bronchus and tumor in comparison with subsequent pathologic and surgical findings (0.01