螺旋CT对肺部孤立性结节诊断的探讨

目的利用螺旋CT扫描技术分析不同性质的孤立性肺结节的影像学特点,并探讨该方法在肺部结节定性诊断中的临床价值,提高对其的认识。方法对32例肺部结节的患者进行螺旋CT扫描,其中,9例进行了增强扫描,分别记录肺部结节的影像学特征进行分析。结果32例病例中,影像诊断良性病变24例(经临床确诊18例),影像诊断恶性病变8例(经临床确诊6例)。18例良性SPN中,15例呈边缘光滑;6例恶性SPN中,5例边缘呈分叶,4例有毛刺,2例见到支气管气像和空泡征。所有病例中,6例出现钙化。增强9例病人中,影像诊断恶性6例,良性3例。结论螺旋CT对肺部孤立性结节的良恶性的鉴别虽然有一定的困难,但若结合增强扫描、流行病学资料综合分析,仍有很大的诊断价值。

Diagnosis of Solitary Pulmonary Nodules with Spiral CT

Objective To analyse the imaging characteristics of solitary pulmonary nodules(SPNs) with the spiral CT, and detection clinical values of the definitive diagnosis to SPNs. Methods 32 cases of SPNs were identified by spiral CT, 9 cases of them were examinated by enhancement scanning. The diffrentical imaging features were analyzed. Results 24 cases were malignant in imaging(18 cases were identified), 8 cases were benign in imaging(6 cases were identified). 15 cases of malignant SPNs by clinical identified were smooth at edge; 6 cases of benign SPNs by clinical identified. 5 cases of them were anomaly;4 cases of them were burr;2 cases of them were bronchial sign and vesiclat sign.6 cases of the SPNs were calcified. 6 cases of SPNs(9 cases with contrasting) were benign in imaging, 3 cases of them were malignant in imaging. Conclusion The differential diagnostic of SPNs is difficult by spiral CT, but enhancement scanning and epidemiology combined with spiral CT is very valuable for definitive diagnosis.