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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 diagnostic value of conventional diffusion weighted imaging (DWI) combined with magnetic resonance imaging (MRI) in preoperative staging of endometrial cancer. Methods MRI and DWI data of 38 patients with pathologically confirmed endometrial carcinoma were retrospectively analyzed. The signal characteristics and extent of invasion were observed. The ADC value of different stages was measured to determine the depth and extent of myometrial invasion. Control analysis. Results The T1WI of endometrial carcinoma was almost equal, T2WI was high, and DWI was high. The average ADC value of endometrial carcinoma was (0.832 ± 0.081) × 10-3mm2 / s, which decreased gradually with the increase of staging (P <0.01). The accuracy rates of MRI and DWI combined with MRI were 84.21% and 89.47%, respectively, with no significant difference (P> 0.05). MRI and DWI combined with MRI The accuracy of myometrial invasion depth was 84.21% and 94.74%, respectively, with no significant difference (P> 0.05). Conclusion The combination of DWI and MRI is valuable in the diagnosis of endometrial carcinoma preoperatively and the staging of tumor. It provides an important basis for the selection and prognosis evaluation of endometrial carcinoma treatment.