【摘要】 目的研究肺小结节CT靶扫描的临床诊断价值。方法最大径≤2 cm的58例肺小结节患者纳入研究,全部先完成16层CT常规检查,层厚7 mm,然后对病灶进行靶扫描(层厚0.5~1 mm)并完成三维重建。结果最终证实肺癌22例,良性病变32例和不典型腺瘤样增生(AAH)4例。恶性结节(肺癌和AAH)最大直径4~18 mm,呈边界清楚的含磨玻璃密度结节22例;良性最大径约6~17 mm,呈含磨玻璃密度结节6例,其中3例边界模糊。靶扫描图像阅片诊断不确定率为31.0%,显著低于常规图像阅片诊断不确定率(65.5%),差异有显著性(χ2=13.810,P<0.01)。结论靶扫描帮助提高肺小结节特征显示,降低肺结节诊断不确定率。更多还原

【Abstract】 Objective To explore the clinical values of targeted CT scan in diagnosing solitary pulmonary nodules.Methods Fifty-eight patients with a pulmonary nodule no more than 2 cm in diameter were enrolled in our study. All patients were undertaken the chest routine scan(7 mm slice-thickness), and subsequently a targeted scan(0.5-1 mm slice-thickness) with a 16-slice CT scanner. Results There were 22 cases of lung cancers, 32 cases of benign lesions and 4 cases of atypical adenomatoid hyperplasia(AAH) pathologically confirmed. The malignant lesions(lung cancer and AAH) were 4-18 mm in diameter, and 22 cases of them were nonsolid and delineated. The benign lesions were 6 to 17 mm in diameter, and only 6 cases of them were nonsolid including three blurred. The uncertainty of diagnosis with targeted scan(31.0%) was lower than that with routine scan(65.5%),the difference was significant(χ2=13.810,P<0.01).Conclusion The targeted scan would help improving characterization of pulmonary nodules and bring the uncertainty of diagnosis down.更多还原