不同年龄组新型冠状病毒肺炎患者首次胸部CT表现

Chest CT manifestation of patients with corona virus disease 2019 in different age groups

目的探讨新型冠状病毒肺炎(corona virus disease 2019,COVID-19)患者(非危重型)不同年龄组首次胸部CT表现差异性。方法回顾性分析93例COVID-19患者(非危重型)首次胸部CT表现,按照患者发病年龄分为<30岁,30~50岁,>50岁(A,B,C三组),比较分析不同年龄组之间CT表现。结果在93例COVID-19患者中,不同年龄组首次胸部CT表现相同点:病灶多呈结节(A组9/12、B组35/45、C组19/36)、斑片状(A组3/12、B组25/45、C组28/36),多累及下叶(A组9/12、B组43/45、C组33/36),病灶边界多呈清晰(A组11/12、B组37/45、C组29/36),肺外阳性征象者少(C组3/36,余两组无)。不同点:<30岁组单肺受累多(10/12),且右肺(8/12)多于左肺(2/12),病灶局限(6/12)且单发(5/12),30~50岁组和>50岁组病灶多累及双肺(30/45、26/36),病灶范围广(26/45、27/36)且多发(23/45、26/36)。<30岁组病灶密度以纯磨玻璃为主(7/12),>50岁组病灶密度以实变为主(27/36)。结论通过对比不同年龄组COVID-19患者(非危重型)之间首次胸部CT检查结果可知,在病灶数量、累及范围和密度等方面存在一定差异,应对其影像学表现加以关注,从而使临床诊疗工作更具针对性。

Objective To explore the chest CT performance difference at the first time in patients with corona virus disease 2019(COVID-19)(non critical)in different age groups.Methods The chest CT manifestations of 93 patients with cCOVID-19(non critical)at the first time were retrospectively analyzed.According to age of the patients at the onset,those patients were divided into three groups,i.e.,Group A(patients aged<30 years old),Group B(patients aged 30~50 years old),and Group A(patients aged>50 years old),and then,the comparative analysis of CT performance between different age groups wsa conducted.Results The chest CT similarities of 93patients with COVID-19 for the first time in,different age groups were as follows lesions mostly presented with nodules(group A accounting for 9/12,group B for 35/45,group C for 19/36),patchy(group A accounting for 3/12,group B for 25/45,group C for 28/36),involvement in the lower lobe in many caases(group A accounting for 9/12,group B for 43/45,group C for 33/36),the clear boundary(group A accounting for 11/12,group B for 37/45,group C for 29/36),and less extrapulmonary positive signs(group C accounting for 3/12,none for the other two groups).As for the difference,single lung involvement was more frequent(accounting for 10/12)in the group A,and the right lung(accounting for 8/12)was more frequent than the left lung(2/12),with focal localization(6/12)and single lesion.In group B and C,the lesions mostly involved both lungs(accounting for 30/45,26/36),with a wide range of lesions(accounting for 26/45,27/36)and multiple lesions(accounting for 23/45,26/36).The focus density in group A was mainly pure ground glass(accounting for 7/12),while,that in group C was mainly solid(27/36).Conclusion By comparing the results of the first chest CT examination on patients with COVID-19(non-critical type)between different age groups,we can see that there are some differences in the number,extent and density of lesions.We should pay attention to their imaging manifestations so as to make the clinical diagnosis and treatment more targeted.