同层CT动态增强扫描在肺孤立性结节诊断中的应用

Application of incremental dynamic enhanced computer tomography in the diagnosis of solitary pulmonary nodules

目的 评价同层 CT动态增强扫描技术在肺孤立性结节诊断中的价值。 方法 回顾性总结手术治疗的4 2例肺孤立性结节病变患者的临床资料 ,分析 CT动态增强扫描前后 CT增强值的变化 ,与术后病理检查的结果比较。 结果 肺癌和肺炎性假瘤显著强化 ,肺结核球和肺错构瘤轻度强化或不强化 ,肺癌患者 CT动态增强扫描在 85秒和 135秒 CT值与其它病变比较差别有显著性意义 (P<0 .0 5 )。 结论 同层 CT动态增强扫描对肺孤立性结节的鉴别诊断有一定的价值 ,术前应常规进行 CT动态增强扫描并对淋巴结进行观察 。

Objective To evaluate the value of incremental dynamic enhanced computer tomography (CT) in diagnosis of solitary pulmonary nodules (SPN). Methods The data of 42 cases with SPN who had undergone pulmonary lobectomy were collected retrospectively to find the relationship between character of preoperative dynamic enhanced CT image and postoperative pathologic result. Results All bronchogenic carcinoma showed significant enhancement after intravenous 100 ml iodinated contrast material. The average degree of enhancement of bronchogenic carcinoma during the time 85s and 135s after infusion was significantly different from that of tuberculoma and other benign lesions(P<0.05). Conclusion Dynamic enhanced CT is valuable in identifying the malignant nodules from benign nodules. Emphasis should be paid to the lymph nodes in the relative field with dynamic enhanced CT, which is beneficial to the diagnosis of SPN and it is an important predictor of the result of surgical (treatment. )