目的 分析磁共振成像(MRI)对 宫颈癌的诊断及其周围侵犯的判断价 值。方法 收集我院妇产科近4年(2014年 3月-2018年3月)收治的71例宫颈癌患者 的术前MRI影像资料，所有患者均经手 术病理证实，以病理结果为参照，比较 MRI检查对宫颈癌原发灶及癌变累及范围 的显示效果，分析MRI检查对宫颈癌患 者的诊断及其侵犯范围的评估价值。结 果 MRI无法显示宫颈癌Ia期，评估宫颈癌 Ib期、II 期、III 期、IV期的准确性分 别为95.65%(66/69)、86.96%(60/69)、 94.20%(65/69)、100%(69/69)，总准确 度为85.92%(61/71)，与病理结果无显著 性差异(P>0.05)；MRI对肿瘤累及阴道、 宫体、宫旁组织评估的准确率分别为 88.00%、72.73%、83.87%，灵敏度分别为 88.89%、82.35%、91.67%、特异度分别为 80.00%、40.00%、57.14%，阳性预测值分 别为97.56%、82.35%、88.00%，阴性预测 值分别为44.44%、40.00%、66.67%。结 论 MRI检查对宫颈癌原发灶及其侵犯范围 判断较准确，具有较高的临床价值，可将 其作为术前诊断及术后降期评估的有效依 据。

Objective To analyze the value of magnetic resonance imaging (MRI) in the diagnosis of cervical cancer and the judgment of surrounding invasion. Methods The preoperative MRI imaging data of 71 patients with cervical cancer admitted to our department of obstetrics and gynecology of our hospital in recent four years (from March 2014 to March 2018) were collected. All patients were confirmed by surgical pathology. The pathological results were taken as reference to compare the display effects of MRI towards the primary focus of cervical cancer and the extent of cancer involvement, and to analyze the estimated value of MRI in the diagnosis and invasion scope of patients with cervical cancer. Results MRI could not show stage Ia of cervical cancer, and the accuracies of MRI in evaluating stage Ib, stage II, stage III and stage IV of cervical cancer were 95.65% (66/69), 86.96% (60/69), 94.20% (65/69) and 100% (69/69) respectively, and the total accuracy was 85.92% (61/71), and there was no significant difference compared with the pathological results (P>0.05). The accuracies of MRI in the evaluation of tumor involving vagina, corpus and parametrium were 88.00%, 72.73% and 83.87% respectively, and the sensitivities were 88.89%, 82.35% and 91.67%, and the specificities were 80.00%, 40.00% and 57.14% respectively, and the positive predictive values were 97.56%, 82.35% and 88.00% respectively, and the negative predictive values were 44.44%, 40.00% and 66.67% respectively. Conclusion MRI examination has a relatively accurate judgment on the primary lesions and invasion scope of cervical cancer, and has high clinical value. And it can be used as an effective basis for preoperative diagnosis and postoperative assessment in clinic.