目的 分析CT和MRI对宫外孕的诊 断价值，为临床提供影像学参考。方法 研究年限为2011年3月-2015年3月，研究 对象为11例宫外孕患者，采用随机对照研 究的方式进行分组研究，采用CT扫描检查 后与MRI检查进行对照，以掌握宫外孕的 影像学典型征象和提高临床确诊率。结果 CT检查与MRI检查宫外孕患者影像学征象 主要为子宫旁囊性、囊实性改变或软组织 呈现为不均匀的密度包块。特征性表现为 盆腔积血或包块内出血病灶。结论 临床 上超声检查无法确诊的宫外孕患者，可选 择CT检查或MRI检查，二者是重要的补充 检查方式，其中MRI对陈旧或亚急性出血 的确诊率高于CT和超声检查。

Objective To analyze diagnostic value of CT and MRI for ectopic pregnancy and to provide the reference for clinical imaging. Methods The research duration extended from March, 2011 to March, 2015, 11 patients with ectopic pregnancy were selected as research subjects, the way of randomized controlled trial was applied to conduct grouping research, CT scan examination was controlled with MRI examination diagnosis in order to acquire typical imaging signs and clinical diagnosis rate of ectopic pregnancy. Results Imaging signs of CT scan and MRI examinations on patients with ectopic pregnancy involved parametrial cystic, change in cystic solid or masses of soft tissue with uneven density. Characteristics are manifested with pelvic hemorrhage or internal hemorrhage lesions of masses. Conclusion Patients with ectopic pregnancy who fail to be diagnosed clinically via ultrasonography may choose CT examination or MRI examination, both of which are important approaches of supplementary examination, accurate diagnosis of MRI on obsolete or subacute haemorrhage is better than that of CT examination and ultrasonography examination.