目的研究支原体肺炎的多排螺 旋CT(HRCT)影像征象，探讨HRCT在小儿支 原体肺炎诊断和疗效评估中的价值。方法 回顾性分析我院2015年1月至2017年1月门 诊及住院部收治的经病理、病原学检验确 诊为支原体肺炎的患者72例，收集72例患 者的影像学资料及临床资料，分析其CT的 检查特征，并对CT用于支原体肺炎的诊断 以及疗效评估中的价值进行总结。结果 所有患者中，37例为单侧病变，35例为双 侧病变，19例病灶位于左上肺叶，24例病 灶位于左下肺叶，21例病灶位于右上肺 叶，13例病灶位于右中肺叶，25例病灶位 于右下肺叶。治疗前病变部位的主要CT表 现为出现大面积的斑片状、斑点状阴影， 及条索状或磨玻璃样阴影。治疗后病变部 位的主要CT表现为病灶密度降低，病灶范 围减少。结论 CT能清楚显示支原体肺炎 的肺内病变，其特有的影像征象能为临床 提高诊断准确性；此外，CT扫描能根据病 灶特征变化对治疗效果进行评价，对疗效 的评估具有重要价值，可用于临床对支原 体肺炎的诊断以及疗效评估。

Objective To study the imaging features of Mycoplasma pneumoniae in multislice spiral CT, and to explore the value of HRCT in the diagnosis and evaluation of mycoplasma pneumonia in children. Methods A retrospective analysis of 72 children admitted to the outpatient department and inpatient department between January 2015 and January 2016 in our hospital (they were diagnosed as Mycoplasma pneumonia by pathology and etiology). The imaging data and clinical data of 72 children were collected and the CT features were analyzed, and the diagnostic value of CT in children with mycoplasma pneumonia and the evaluation of their efficacy were summarized. Results Of the total children, 37 had unilateral lesions and 35 had bilateral lesions. In addition, 19 lesions were located in the left upper lobe, 24 lesions were located in the lower left lobe, 21 lesions were located in the right upper lobe, 13 lesions were located in the right middle lobe and 25 lesions were located in the right lower lobe. The main CT features of the lesion before treatment were as follows: a large area of patchy and speckled shadows appeared, the lungs of the children increased, and the cords or ground-glass shadows appeared. The major CT findings of the lesion after treatment were: reduced density of the lesion, reduced lesion size, and reduced absorption of the patchy lesion after the lesion was treated. Conclusion CT diagnosis of mycoplasma pneumonia in children with lesions clearly showed that its unique image signs combined with clinical symptoms can effectively improve the diagnostic accuracy of patients. In addition, the CT scan can be based on changes in the characteristics of the lesions to evaluate the effect of its cure, the evaluation of the efficacy is of great value and can be used for clinical diagnosis of pediatric mycoplasma pneumonia and efficacy evaluation.