支原体肺炎的CT影像特点及其应用

目的分析支原体肺炎(MP)的CT影像学特征,指导临床早期诊断和治疗MP。方法对36例经血清学证实的MP患者的CT影像学资料进行回顾性分析,根据MP的治疗时间分为入院时及2、4周组进行CT影像表现比较,并按照年龄分为儿童组和成人组,对其CT影像表现进行比较。结果 36例MP患者CT影像入院时主要表现为磨玻璃样变(75.0%,27/36)和小斑片状或结节状实变影(91.7%,33/36);治疗2周后主要表现为大片状实变影(5.6%,2/36)和合并肺外病变(5.6%,2/36);治疗4周后病变完全消失。入院时与治疗2、4周时的各CT影像表现之间率的比较差异均有统计学意义(P<0.05),治疗2周和4周各CT影像表现之间率的比较差异无统计学意义(P>0.05)。儿童组20例中磨玻璃样变占15.0%(3/20),小斑片状实变影占20.0%(4/20),明显低于成人组(75.0%、50.0%),而大片状实变影(75.0%,15/20)、肺不张(15.0%,3/20)、淋巴结肿大(25.0%,5/20)、胸膜腔积液(10.0%,2/20)和支气管扩张(10.0%,2/20)比例则明显高于成人组(43.8%、6.3%、12.5%、6.3%、0.0%),差异均有统计学意义(P<0.05)。结论 MP的CT影像表现具有一定的特征性,对MP的早期诊断和治疗具有重要的指导作用。

Computerized tomography imaging characteristics of mycoplasma pneumonia and its application

Objective To analyze the computerized tomography(CT)imaging features of mycoplasma pneumonia(MP) in order to guide the early clinical diagnosis and treatment of MP.Methods CT imaging data of 36 patients with MP of serologically proven were retrospectively analyzed.All the patients were divided into hospitalization,2 weeks and 4 weeks group according to the treatment time for MP,and also divided into children group and adults group according to the age.The CT imaging among the groups were compared.Results Among the CT imaging of 36 patients with MP,75.0%(27/36)cases showed ground-glass opacity and 91.7%(33/36)cases showed patchy air-space or nodular consolidation at the hospitalization;5.6%(2/36)cases showed large area of consolidation and 5.6%(2/36)cases showed extra-pulmonary diseases at the 2 weeks;the lesions was disappear completely at the 4 weeks.There were significant differences of rate comparisons of the CT imaging among the time of hospitalization and the 2,4 weeks(P<0.05),while it had no significant difference between the time of 2 weeks and 4 weeks(P>0.05).In children group of 20 cases,there were 15.0%(3/20) cases of ground-glass opacity and 20.0%(4/20)cases of patchy air-space consolidation,which were significantly lower than those of the adults group(75.0%,50.0%).But 75.0%(15/20)cases showed large area of consolidation,15.0%(3/20) cases showed pulmonary atelectasis,25.0%(5/20)cases showed enlarged lymph nodes,10.0%(2/20)cases showed pleural effusion and 10.0%(2/20)cases showed bronchiectasis in children group,which were significantly higher than those of the adults group(43.8%,6.3%,12.5%,6.3%,0.0%).There were significant differences of the CT imaging between the children group and the adult group(P<0.05).Conclusion CT imaging of MP is characteristic and had an important prompt function for the early clinical diagnosis and treatment of MP.