高弥散敏感因子的弥散加权成像及动态增强磁共振成像联合肿瘤糖类抗原125对早期卵巢病变性质判断能力的研究  

Research on the ability of high diffusion sensitivity coefficient DWI and DCE-MRI combined with tumor CA 125 in judging the nature of early ovarian lesions

作　　者：龚姝姝 施晏 黄红娟 Gong Shushu;Shi Yan;Huang Hongjuan(Department of Imaging,Nantong Haimen People’s Hospital,Nantong 226100,China)

机构地区：[1]南通市海门区人民医院影像科,南通226100

出　　处：《中国医学装备》2024年第2期70-74,共5页China Medical Equipment

基　　金：江苏省卫生厅科研基金(20210083)。

摘　　要：目的:研究高弥散敏感因子(高b值)弥散加权成像(DWI)、动态增强磁共振成像(DCE-MRI)结合肿瘤糖类抗原125(CA125)对卵巢病变性质判断的临床效果。方法:选取2020年4月至2022年4月南通市海门区人民医院经治的100例卵巢病变患者进行回顾性研究,所有患者均行CA125、DWI、DCE-MRI检查及病理检查定性,按病理结果将58例卵巢恶性病变患者纳入恶性组,42例卵巢良性病变患者纳入良性组,分析比较两组患者的CA125情况,以及高b值DWI+CA125、DCE-MRI+CA125和高b值DWI+DCE-MRI+CA125不同检查方法的受试者工作特征曲线(ROC)结果。结果:恶性组CA125水平明显高于良性组,差异有统计学意义(t=29.357,P<0.05);CA125阳性率显著优于良性组,差异有统计学意义(x2=34.456,P<0.05),恶性组表观弥散系数(ADC)值为(0.91±0.18)×10^(3)mm^(2)/s明显小于良性组(ADC=33±0.21×10^(3)mm^(2)/s),而对比剂容积转换常数(Ktrans)、速率常数(Kep)及血管外细胞外间隙容积比(Ve)指标明显高于良性组,差异均有统计学意义(t=16.863、9.686、10.205,P<0.05);高b值DWI+DCE-MRI+CA125检查方法诊断恶性卵巢肿瘤的准确率、灵敏度、阴性预测值及阳性预测值均高于高b值DWI+CA125或DCE-MRI+CA125检查方法。DCE-MRI+CA125与高b值DWI+CA125检查方法的各指标比较,差异无统计学意义(P>0.05);ROC曲线分析显示,高b值DWI+DCE-MRI+CA125检查方法的ROC曲线下面积(AUC)最佳(AUC=0.920)。结论:高b值DWI+DCE-MRI+CA125的组合检查方法总体诊断效能较好,可提升恶性卵巢肿瘤的临床诊断筛查能力,具有一定的临床应用价值。Objective:To investigate the clinical effect of high diffusion sensitivity coefficient(high b value)diffusionweighted imaging(DWI),dynamic contrast-enhanced magnetic resonance imaging(DCE-MRI)combined with tumor carbohydrate antigen 125(CA125)in judging the nature of ovarian lesions.Methods:A total of 100 patients with ovarian lesions who were treated in Nantong Haimen People’s Hospital from April 2020 to April 2022 were selected for retrospective study.All of them underwent CA125,DWI,DCE-MRI and pathologically qualitative examination.According to the pathological results,58 patients with malignant lesions of ovarian were divided into malignant group and patients with benign lesions of ovarian were divided into benign group.The CA125 levels of the two groups were analyzed and compared,and the results of the receiver operating characteristics(ROC)of different detection methods(DWI with high b value+CA125,DCE-MRI+CA125,DWI with high b value+DCE-MRI+CA125)also were analyzed and compared.Results:The CA125 index of the malignant group was significantly higher than that of the benign group,with a statistically significant difference(t=29.357,P<0.05),and the CA125 positive rate of the malignant group was significantly better than that of the benign group,with a statistically significant difference(x^(2)=34.456,P<0.05).The apparent diffusion coefficient(ADC)value[(0.91±0.18)×10^(3)mm^(2)/s]of the malignant group was significantly less than that[(33±0.21)×10^(3)mm^(2)/s]of the benign group,while the contrast agent volume conversion constant(Ktrans),rate constant(Kep)and the extracellular space volume ratio outside of blood vessels(Ve)of the malignant group were significantly higher than those of the benign group,with significant differences(t=16.863,9.686,10.205,P<0.05),respectively.The diagnostic accuracy,sensitivity,negative predictive value and positive predictive value of DWI with high b-value+DCE-MRI+CA125 examination method were higher than those of DWI with high b-value+CA125 or DCE-MRI+CA125 examination meth

关 键 词：弥散加权成像(DWI) 弥散敏感因子(b值) 动态增强磁共振成像(DCE-MRI) 肿瘤糖类抗原125(CA125) 卵巢病变 

分 类 号：R445.2[医药卫生—影像医学与核医学]