MRI及DWI在子宫内膜癌术前分期中的诊断价值  

Evaluation of magnetic resonance imaging and diffusion weighted imaging in preoperative staging of endometrial carcinoma

作　　者：廖秋玲[1] 董巨浪[2] 朱新进[3] 汪康宁[1] 梁坚豪[3] 欧阳芬[1] 林子惟 赵继泉[3] 

机构地区：[1]广东医学院,广东湛江524001 [2]佛山市第二人民医院妇产科,广东佛山528000 [3]佛山市第二人民医院医学影像中心,广东佛山528000

出　　处：《海南医学》2015年第16期2390-2393,共4页Hainan Medical Journal

摘　　要：目的评价磁共振扩散加权成像(DWI)联合磁共振成像(MRI)常规检查对子宫内膜癌术前分期诊断价值。方法回顾性分析38例经病理证实的子宫内膜癌患者MRI及DWI资料,观察肿瘤的信号特点,侵犯的范围,测量其不同分期ADC值,判断其肌层浸润深度、范围,并与病理结果进行对照分析。结果子宫内膜癌T1WI多呈等信号,T2WI呈高信号,而DWI呈明显高信号;子宫内膜癌ADC平均值为(0.832±0.081)×10-3mm2/s,随着分期增加而逐渐降低,不同分期间差异有统计学意义(P<0.01);MRI及DWI联合MRI判断病理分期准确率分别为84.21%和89.47%,差异无统计学意义(P>0.05);MRI及DWI联合MRI判断肌层浸润深度的准确率分别为84.21%和94.74%,差异无统计学意义(P>0.05)。结论 DWI联合MRI对子宫内膜癌术前的诊断、肿瘤的分期判断有较高的价值,为子宫内膜癌治疗方式的选择及预后评估提供重要依据。Objective To evaluate the diffusion weighted imaging （DWI） and conventional magnetic reso- nance imaging （MRI） in preoperative staging and diagnosis of endometrial carcinoma. Methods The MRI and DWI data of 38 cases with pathologically confirmed endometrial carcinoma cancer were retrospectively analyzed. Tumor of signal characteristics and invasion range were observed, and different staging of ADC value were measured. Invasive depth and extent were evaluated and compared with pathological findings. Results Endometrial carcinoma was usu- ally isointensity on T^WI, hyperintensity on T2WI and DWI. The average ADC value of endometrial carcinoma was （0.832±0.081）× 10^-3 mm2/s, which decreased gradually with the increasing. The differences in ADC value of different stages were statistically different （P〈0.01）. The accuracy of conventional MRI and DWI combined conventional MRI was 84.21% and 89.47% in assessing pathological staging, with no statistically significant difference （P〉0.05）. The ac-curacy of conventional MR/and DWI combined conventional MRI was 84.21% and 94.74% in assessing deep myo- metrial invasion, with no statistically significant difference （P〉0.05）. Conclusion DWI combined MRI has a higher value in assessing preoperative staging and diagnosis of endometrial carcinoma, providing an important basis for the selection of treatment method and prognosis of endometrial carcinoma.

关 键 词：磁共振扩散加权成像 磁共振成像 子宫内膜癌 肿瘤分期 

分 类 号：R737.33[医药卫生—肿瘤]