磁共振弥散成像鉴别子宫肉瘤与内膜癌的价值探讨

The Value of Diffusion-Weighted Imaging in Differential Diagnosis of Uterine Sarcoma and Endometrial Carcinoma

目的:研讨磁共振弥散成像鉴别子宫肉瘤与内膜癌的价值。方法:采用磁共振成像扫描仪行盆腔平扫加增强扫描检查,对比病灶形态、结合带状态、血管流空影及囊变、坏死、出血状况,计算肿瘤最大直径、子宫内膜厚度与宫腔前后径比值(ET/AP)、表面弥散系数(ADC1)、相对表面弥散系数(rADC)及最大相对强化率(MRER)。结果:US组血管流空影、囊变、坏死、出血数及肿瘤最大直径、ET/AP、MRER大于EC组(P<0.05),两组病灶形态、结合带状态、ET/AP、ADC1、rADC差异无统计学意义(P<0.05)。结论:子宫肉瘤与内膜癌患者MRI下T2WI、T1WI、DWI信号强度以及肿瘤最大直径、表面弥散系数、子宫内膜厚度与宫腔前后径比值对两症区别诊断具有较高诊断效能。

Objective:To investigate the value of diffusion-weighted imaging in the differential diagnosis of uterine sarcoma and endometrial carcinoma.Methods:MR scanner was used for scanning,and the shape of the lesion,the state of the junction zone,the empty shadow of vascular flow,cystic change,necrosis and bleeding were compared,and the maximum diameter of tumor,et/AP,ADC1,rADC and mrer were calculated.Results:compared with EC group,US group had more vascular flow shadow,cystic degeneration,necrosis,bleeding number,maximum tumor diameter,et/AP and mrer(P<0.05),but there was no significant difference in lesion morphology,junction zone status,et/AP,ADC1,rADC between the two groups(P<0.05).Conclusion:the signal intensity of T2WI,T1WI and DWI,the maximum diameter of tumor,the surface diffusion coefficient and the ratio of endometrial thickness to anteroposterior diameter of uterine cavity have high diagnostic efficiency in the differential diagnosis of uterine sarcoma and endometrial carcinoma.