摘要
目的探讨多排螺旋CT(MDCT)在乏脂性肾血管平滑肌脂肪瘤诊断中的应用价值。方法选取2012年1月~2020年2月在我院治疗的乏脂性肾血管平滑肌脂肪瘤患者作为观察组(n=117),将肾透明细胞癌患者作为对照组(n=210),两组均给予MDCT检查,分析两组CT征象、CT值等差异,采用受试者工作特征(ROC)曲线分析CT值判断乏脂性肾血管平滑肌脂肪瘤的价值。结果观察组女性比例高于对照组(P<0.05),年龄低于对照组(P<0.05);观察组密度均匀、边界清楚、瘤内血管影比例分别为80.34%、100.00%和16.24%,明显高于对照组(P<0.05);观察组假包膜比例低于对照组(P<0.05);CT征象中,形态、强化方式在观察组和对照组中差异无统计学意义(P>0.05);观察组病灶CT值和病灶/肾实质CT比值分别为46.10±7.82 Hu和1.37±0.32,明显高于对照组(P<0.05);观察组和对照组肾实质CT值比较差异无统计学意义(P>0.05);病灶CT值、病灶/肾实质CT比值诊断乏脂性肾血管平滑肌脂肪瘤的ROC曲线下面积分别为0.872和0.862,截断值分别为41.50 Hu和1.20时,敏感度分别为78.80%和76.50%,特异性分别为75.50%和74.40%。结论MDCT在乏脂性肾血管平滑肌脂肪瘤诊断中有较好的应用价值,值得临床使用。
Objective To evaluate the value of multidetector CT(MDCT)in the diagnosis of angiomyolipomas with minimal fat.Methods A total of 117 patients with angiomyolipomas with minimal fat who were treated in our hospital from January 2012 to February 2020 were selected as the observation group,210 patients with renal clear cell carcinoma were control group.Both groups were given MDCT examination.The differences of CT signs and CT values between the two groups were analyzed.The receiver operating characteristic(ROC)curve was used to analyze the CT value in the diagnosis of angiomyolipomas with minimal fat.Results The female proportion of the observation group was higher than that of the control group(P<0.05).The age of the observation group was lower than that of the control group(P<0.05).In the observation group,the proportion of the density was uniform,the boundary was clear,and vascular shadow in the tumor were 80.34%,100.00%and 16.24%,which were significantly higher than that in the control group(P<0.05).The proportion of pseudocapsule in the observation group was significantly lower than that in the control group(P<0.05).In CT signs,there were no significant difference in morphology and enhancement mode between the observation group and the control group(P>0.05).The lesion CT value and CT ratio of lesion/renal parenchyma in the observation group were 46.10±7.82 Hu and 1.37±0.32,which were significantly higher than those in the control group(P<0.05).There was no significant difference in CT value of renal parenchyma between the observation group and the control group(P>0.05).The area under ROC curve of lesion CT value and lesion/renal parenchyma CT ratio in the diagnosis of angiomyolipomas with minimal fat were 0.872 and 0.862,cut-off values were 41.50 Hu and 1.20,the sensitivity were 78.80%and 76.50%,and the specificity were 75.50%and 74.40%.Conclusion MDCT has a good value in the diagnosis of angiomyolipomas with minimal fat,which is worthy of clinical use.
作者
龚媛媛
吴艳峰
薛嘉海
林德春
张莲
刘帝亮
GONG Yuanyuan;WU Yanfeng;XUE Jiahai;LIN Dechun;ZHANG Lian;LIU Diliang(Department of Radiology,Zhangjiakou First Hospital,Zhangjiakou 075000,China)
出处
《分子影像学杂志》
2021年第3期507-511,共5页
Journal of Molecular Imaging
基金
河北省2021年度医学科学研究课题计划项目(20211510)。
