目的 探究常规磁共振成像(MRI) 联合扩散加权成像(DWI)在宫颈癌术前分 期诊断中的应用价值。方法 纳入2016年 9月-2018年9月我院56例宫颈癌患者展开 回顾性分析，术前行常规MRI联合DWI检 查，测量肿瘤组织及残存正常宫颈组织 的表观扩散系数(ADC)值，并以术后病理 分期为金标准，比较常规MRI扫描与常规 MRI联合DWI扫描对宫颈癌术前分期诊断准 确性的差异。结果 宫颈癌实性部分ADC 值(0.88±0.32)×10-3mm2 /s显著高于残 存正常宫颈组织ADC值(1.58±0.20)×10- 3 mm2 /s，差异有统计学意义(t=13.882， P<0.001)；MRI联合DWI对宫颈癌术前分 期诊断准确性显著高于常规MRI，差异有 统计学意义(χ2 =5.617，P=0.040)。结论 宫颈癌患者术前行常规MRI联合DWI检查是 一种可信、准确度高的影像学诊断方法， 可准确评估术前分期，指导治疗方案的选 择及预后评估。

Objective To investigate the value of conventional magnetic resonance imaging (MRI) combined with diffusion-weighted imaging (DWI) in preoperative staging of cervical cancer. Methods A total of 56 patients with cervical cancer who admitted to the hospital from September 2016 to September 2018 were selected for retrospective analysis. Conventional MRI combined with DWI was performed to measure the apparent diffusion coefficient (ADC) value of tumor tissues and residual normal cervical tissues. With postoperative pathological staging as the golden standard, the accuracy of preoperative staging of cervical cancer was compared between conventional MRI scan and conventional MRI combined with DWI scan. Results The ADC value of the solid part of cervical cancer was significantly higher than that of the residual normal cervical tissue [(0.88±0.32)×10-3mm2 /s vs (1.58±0.20)×10-3mm2 /s] (t=13.882, P<0.001). The accuracy of MRI combined with DWI for preoperative staging of cervical cancer was significantly higher than that of conventional MRI (χ2 =5.617, P=0.040). Conclusion Preoperative conventional MRI combined with DWI is a reliable and accurate imaging diagnostic method for cervical cancer. It can be used to assess the preoperative stage accurately, and guide the choice of treatment plan and evaluate the prognosis.