低剂量CT体检筛查肺部磨玻璃结节的价值

Value of Low-Dose CT Screening for Pulmonary Ground-Glass Nodules

目的探讨低剂量螺旋CT(LDCT)在健康体检人群中筛查肺磨玻璃结节(GGN)的价值。方法回顾性分析4500例行LDCT胸部体检的健康体检者的资料,分析LDCT对肺部GGN的检出能力。结果在4500例健康体检者中,检出肺部结节1328例(29.51%),其中95例为GGN(2.11%),所有GGN经副主任以上影像专家讨论71例符合良性影像表现(处于随访中),19例需要密切随访复查(影像特征介于良恶性之间),5例符合恶性影像表现,5例手术病理证实均为恶性。结论LDCT扫描能够发现肺部GGN,并且有助于判断病变的良、恶性,在减少体检者辐射剂量同时达到对病变的早期诊断、早期治疗。

Objective To explore the value of low-dose computed tomography(LDCT)in screening pulmonary ground-glass nodules(GGN)in physical examination population.Methods Data of 4500 physical examination subjects who underwent chest LDCT were retrospectively analyzed to evaluate the ability of LDCT in detecting pulmonary GGN.Results Among the 4500 subjects,pulmonary nodules were found in 1328(29.51%),including 95 cases of GGN(2.11%).Of the 71 subjects who showed benign imaging features confirmed by deputy directors or above(under follow-up),close follow-up was required in 19 subjects with GGN between benign and malignant,and malignant GGN was confirmed by imaging features and surgical pathology in 5 cases.Conclusion LDCT scan can find pulmonary GGN and conduces to distinguish the benign and malignant lesions.It reduces the radiation dose and achieves early diagnosis and treatment.