MRI联合DWI在宫颈癌诊断中的价值

The Value of MRI Combined with DWI in the Diagnosis of Cervical Cancer

目的探讨磁共振成像(MRI)联合弥散加权成像(DWI)在宫颈癌诊断中的价值。方法选取2015年1月至2017年10月在我院治疗的宫颈癌患者63例,所有患者均行常规MRI和DWI扫描。结果宫颈癌MRI分期、MRI+DWI与病理分期Kappa值分别为0.507和0.794,P<0.05;宫颈癌MRI+DWI分期总体准确率为84.13%,明显高于MRI分期(P<0.05);宫颈鳞癌和腺癌组织表观扩散系数(ADC)值比较差异无统计学意义(P<0.05);放化疗后病灶ADC值为(1.50±0.21)×10^(-3)mm^2/s,明显高于放化疗前(P<0.05);完全缓解(CR)患者病灶ADC值为(1.52±0.12)×10^(-3)mm^2/s,明显高于部分缓解(PR)患者(P<0.05)。结论 MRI联合DWI在宫颈癌诊断中有较好的价值,在宫颈癌分期诊断中有较高的准确性,且DWI定量指标ADC在放化疗效果评价中有一定作用。

Objective To explore the value of magnetic resonance imaging（MRI） combined with diffusion-weighted imaging（DWI） in the diagnosis of cervical cancer.Methods 63 cases of cervical cancer treated in our hospital from January 2015 to October 2017 were selected, the routine MRI and DWI scan were performed in all patients. Results The MRI staging, MRI＋DWI and pathological staging of cervical cancer were 0.507 and 0.794, P〈0.05. The overall accuracy rate of MRI＋DWI staging for cervical cancer was 84.13%, which was significantly higher than that in MRI staging（P〈0.05）. There was no significant difference in the apparent diffusion coefficient（ADC） between the squamous cell carcinoma and the adenocarcinoma of the cervix（P〈0.05）. The ADC value of the lesion after radiotherapy and chemotherapy was（1.50±0.21）×10（-3） mm2/s, which was significantly higher than that before radiotherapy and chemotherapy（P〈0.05）. The ADC value of the patients with complete remission（CR） was（1.52±0.12）×10（-3） mm2/s, significantly higher than that of patients with partial remission（PR）（P〈0.05）. Conclusion MRI combined with DWI has a good value in the diagnosis of cervical cancer, has high accuracy in cervical cancer staging diagnosis, and DWI quantitative index ADC plays a certain role in evaluating the effect of radiotherapy and chemotherapy.