感兴趣区大小对剪切波弹性成像诊断乳腺肿块的影响

发布时间：2018-01-03 06:10

本文关键词：感兴趣区大小对剪切波弹性成像诊断乳腺肿块的影响　出处：《中国介入影像与治疗学》2017年09期 　论文类型：期刊论文

【摘要】：目的探讨不同大小ROI对剪切波弹性成像(SWE)鉴别诊断乳腺良恶性肿块的影响。方法对因乳腺实性肿块接受手术治疗的乳腺患者225例(共239个肿块)进行SWE,采用"较大ROI"和"ROI=2mm"两种方法测量SWE弹性定量参数,包括弹性最大值(Emax)、弹性平均值(Emean)、弹性标准差(SD)及弹性比(Eratio),采用ROC曲线比较两种方法下各参数诊断效能的差异,获得最佳临界值、敏感度及特异度。结果两种ROI下获得的Eratio诊断乳腺恶性肿瘤的AUC差异有统计学意义(P=0.046),两种ROI测得Emax、Emean及SD诊断乳腺恶性肿瘤的AUC差异无统计学意义(P均0.05)。"较大ROI"时Emax、Emean的特异度较高,而"ROI=2mm"时SD及Eratio的特异度较高,差异均有统计学意义(P均0.05)。两种方法获得的SWE参数与BI-RADS分别联合后的诊断乳腺恶性肿瘤的AUC差异无统计学意义(P均0.05)。结论不同大小ROI仅可影响Eratio诊断乳腺恶性肿瘤的效能,而对SWE定量参数(Emax、Emean、SD)及其与BI-RADS联合后的诊断效能无显著性影响。
[Abstract]:Objective to investigate the effect of different sizes of ROI on the differential diagnosis of benign and malignant breast masses by shear wave elastography. SWE was performed in a total of 239 masses. The elastic quantitative parameters of SWE were measured by "larger ROI" and "ROI=2mm" methods, including the maximum elastic value (Emax) and the mean value of elasticity (E _ (mean)). ROC curve was used to compare the difference of diagnostic efficiency between the two methods, and the best critical value was obtained. Results there was a significant difference in AUC between the two kinds of Eratio in the diagnosis of breast malignant tumor. The Emax was detected by two ROI. There was no significant difference in AUC between Emean and SD in the diagnosis of breast malignant tumors (P < 0.05). The specificity of Emaxus Emean in "larger ROI" was higher than that in control group (P < 0.05). The specificity of SD and Eratio in "ROI=2mm" was higher. The difference was statistically significant (P < 0.05). There was no significant difference in AUC between the SWE parameters obtained by the two methods and BI-RADS in the diagnosis of breast malignant tumors (. Conclusion ROI of different sizes can only affect the effectiveness of Eratio in the diagnosis of breast malignant tumors. However, there was no significant effect on the diagnostic efficacy of SWE quantitative parameter Emaxus Emeanus SDand its combination with BI-RADS.
【作者单位】：中国医科大学附属盛京医院超声科;
【分类号】：R445.1;R737.9
【正文快照】： 剪切波弹性成像技术(shear　wave　elastography,像进行测量,首先采用“较大ROI”测量(图1A),将SWE)在乳腺病变诊断中的应用越来越广泛。研究[1-4]ROI尽量覆盖肿块及其周边表现较硬区域,同时尽量表明,SWE有利于提高常规超声鉴别诊断乳腺病变的避免包括正常组织区域;将另一ROI

【相似文献】