64层螺旋CT支气管动脉成像在原发性肺癌治疗中的临床价值

目的利用64层螺旋CT血管成像研究原发性肺癌患者的支气管动脉（BA）影像特征及其临床价值。方法搜集均经病理证实为原发性肺癌37例。采用64层螺旋CT胸部增强扫描获得原始图像，用容积显示（VR）、多平面重建（MPR）、最大密度投影（MIP）等后处理技术对肺癌的支气管动脉进行观察和分析。结果37例肺癌中有36例40支气管动脉能清楚显示，显示率为97．3％；分别有3支（7．5％）来源于主动脉弓；33支（82．5％）来源于降主动脉，4支（10％）与肋间动脉共干。均显示肺癌侧的支气管动脉管径和截面积较健侧增大。结论64层螺旋CT血管成像是一安全、无损伤、简便有效地支气管动脉影像显示方法；能真实显示肺癌的供血支气管动脉起源、数目、形态和走行。在原发性肺癌的诊断和治疗中具有重要价值。

Clinical value of 64-slic spiral CT imaging of the bronchial artery in the diagnosis and treatment of primary lung cancer

Objective To investigate the bronchial artery imaging features of the patients with primary lung cancer by 64-slice CT angiography （CTA） and its clinical value. Methods 37 cases of primary lung cancer by pathology underwent enhanced 64-slice CT scan. Three dimensional images of the bronchial arteries were processed at the workstation. Spatial anatomical characters of the bronchial arteries were observed using VR and MPR or MIP. Results 40 bronchial arteries of 36 cases in all the 37 eases could be presented clearly. The detection rate was 97.3%. 3 bronchial arteries （7.5%） are from the aortic arch; 33 bronchial arteries （82.5%） are from the descending aorta; 4 bronchial arteries （10%） are from the intercostals artery. Of all, the caliber of the bronchial arteries and the total axial areas on the side of the lung cancer were significantly larger than those of the other side. Conclusion 64-slice CT angiography （CTA） is a safe, noninvasive, simple, and effective method in showing the bronchial artery, which can reveal the origin, number, shape, pathway of the bronchial artery in the primary lung cancer.