MRI对卵巢交界性肿瘤和上皮性卵巢癌的鉴别诊断价值  

Diagnostic Value of MRI in Differentiating Ovarian Borderline Tumors and Epithelial Ovarian Cancer

作　　者：连鹏[1] 潘静 LIAN Peng;PAN Jing(The Fourth Hospital of Xi'an,Xi'an,710004)

机构地区：[1]西安市第四医院

出　　处：《实用癌症杂志》2019年第8期1358-1361,共4页The Practical Journal of Cancer

基　　金：国家青年科学基金项目(编号:81400181)

摘　　要：目的探讨MRI对鉴别卵巢交界性肿瘤和上皮性卵巢癌的诊断价值。方法选择卵巢交界性肿瘤40例(交界组)和上皮性卵巢癌90例(卵巢癌组)作为研究对象,记录所有患者的常规MRI特征与MRI DWI指标。结果MRI显示交界组病灶主要表现为多房、分隔及囊壁厚薄不均、信号不均匀,可见壁结节。卵巢癌组T1WI呈低等信号,T2WI呈不均匀高信号。卵巢癌病灶在b=800 s/mm2的DWI信号强度高于交界组,ADC值低于交界组,对比差异有统计学意义(P <0. 05)。在130例患者中,MRI判断为卵巢癌93例,卵巢交界性肿瘤37例,MRI鉴别诊断的敏感性与特异性为95. 7%和97. 3%。DWI信号强度值-125. 4时,鉴别诊断卵巢交界性肿瘤和上皮性卵巢癌曲线下最大面积为0. 854;ADC=2. 35×10-3mm2/s时,曲线下面积为0. 973。结论 MRI鉴别卵巢交界性肿瘤和上皮性卵巢癌有很好的价值,特别是结合DWI的信号强度值、ADC值对于临床鉴别诊断有更好的指导价值。Objective To investigate the diagnostic value of MRI in differentiating ovarian borderline tumors from epithelial ovarian cancer.Methods 40 cases of borderline ovarian tumors(borderline group)and 90 cases of epithelial ovarian cancer(ovarian cancer group)were selected,and the routine MRI characteristics and MRI DWI indexes of all patients were recorded.Results MRI showed that the lesions in the borderline group were mainly multilocular,septum and uneven thickness of the cyst wall.MRI showed that the lesions in the ovarian cancer group were more with low signal and T2WI showed uneven high signal.When the b=800 s/mm^2,the DWI signal intensity of ovarian cancer were higher than that of the borderline group,and the ADC value were lower than that of the junctional group,compared the difference were statistically significant.In the 130 patients,MRI were diagnosed as ovarian cancer in 93 cases and ovarian borderline tumors in 37 cases,the sensitivity and specificity of MRI differential diagnosis were 95.7%and 97.3%.When the DWI signal intensity were-125.4,the maximum area for the differential diagnosis of borderline and epithelial ovarian cancer were 0.854,and the area under the curve was 0.973 when the ADC=2.35×10^-3 mm^2/s.Conclusion MRI has a good value in the identification of ovarian borderline and epithelial ovarian cancer,especially the value of signal intensity and ADC value of DWI,are of better guiding values for clinical differential diagnosis.

关 键 词：MRI 卵巢交界性肿瘤 上皮性卵巢癌 表观弥散系数 

分 类 号：R737.31[医药卫生—肿瘤]