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目的探讨小儿支原体肺炎影像学的特征性改变,为临床的诊断及治疗提供更准确的依据.方法选取2010年8月—2012年8月在我院就诊的120例支原体肺炎患儿及同期入学体检的120名健康儿童作为研究对象,120例支原体肺炎患儿设为患儿组,120名健康体检儿童设为健康组,比较患儿组治疗前与健康组儿童的胸部正位片结果,总结支原体肺炎患儿的影像学改变特点.结果支原体肺炎患儿的X线影像学较健康儿童有明显的特异性,76.5%的患儿表现为单侧下叶肺部阴影,56.5%患儿肺部纹理增多.健康组儿童肺部仅5.0%出现阴影.差异有统计学意义(P<0.05).结论小儿支原体肺炎早期肺部有明显的影像学特征,可作为诊断的重要证据之一.“,”Objective: To explore the lung imaging changes of Mycoplasma pneumonia in children. Methods: Cases were divided into 2 groups: 120 case of Mycoplasma pneumonia group and 120 case of entrance examination group. Al enroled children underwent anteroposterior Chest X-ray film examination. Summarized al changes in lung imaging features for Mycoplasma pneumonia in children. Results: In Mycoplasma pneumonia group,76.5% of the patients presenting with unilateral lower lobe pulmonary shadow. 56.5% of patients with lung veins increase. 5% of entrance examination group children with pulmonary shadow Conclusion: Chest X-ray imaging features of children with Mycoplasma pneumonia can be used as important evidence of the diagnosis.