超声弹性成像ROI A率联合弹性评分诊断腋窝淋巴结的价值

发布时间：2018-03-06 17:20

本文选题：超声实时组织弹性成像　切入点：腋窝淋巴结　出处：《兰州大学》2014年硕士论文　论文类型：学位论文

【摘要】：目的：研究超声实时组织弹性成像的ROI A率联合弹性评分鉴别腋窝淋巴结良恶性的诊断价值。方法：从2013年5月至2013年12月,筛选出43位因乳腺疾病并发腋窝淋巴结肿大来我院就诊的女性患者,对她们的腋窝淋巴结行超声实时组织弹性成像和二维超声检查,最终收集共76枚病变淋巴结,分别用ROI A率、8分弹性评分法以及两者联合诊断法来鉴别诊断这些淋巴结的良恶性,以病理结果为标准或核磁影像诊断结果为参考,通过ROC曲线来比较这些方法的诊断价值。结果：以病理诊断结果为标准时,ROI A率、弹性评分和联合诊断的ROC曲线下面积分别为67.9%、65.7%和85.4%,ROI A率的敏感性、特异性、准确性为77.8%、81.8%、79.3%；弹性评分的敏感性、特异性、准确性为72.2%、72.7%、72.4%；联合诊断的敏感性、特异性、准确性为88.9%、72.7%、82.7%,联合诊断中ROI A率鉴别淋巴结良恶性的最佳界点为0.20%。以核磁影像诊断结果为参照时,ROI A率、弹性评分和联合诊断的ROC曲线下面积分别为74.5%、73.9%和76.9%,ROI A率的敏感性、特异性、准确性为85.1%、76.7%、80.7%；弹性评分的敏感性、特异性、准确性为74.1%、73.3%、73.7%；联合诊断的敏感性、特异性、准确性为92.6%、80.0%、86.0%。联合诊断中ROI A率鉴别淋巴结良恶性的最佳界点是0.19%。结论：ROI A率与弹性评分联合可以提高诊断准确性,对腋窝淋巴结良恶性的鉴别有较好的诊断价值,联合诊断中ROI A率对良恶性淋巴结的最佳诊断界点为0.19%-0.20%。
[Abstract]:Objective: to study the diagnostic value of ROI A rate combined with elastic score in differentiating benign and malignant axillary lymph nodes. Methods: from May 2013 to December 2013, 43 female patients with breast diseases complicated with axillary lymphadenopathy were selected, and their axillary lymph nodes were examined by real-time tissue elastography and two-dimensional ultrasonography. A total of 76 diseased lymph nodes were collected. The benign and malignant lymph nodes were differentiated by ROI A rate, 8 points elastic score and combined diagnosis. The pathological results were taken as the standard or the results of nuclear magnetic resonance imaging (MRI) were used as the reference. The diagnostic value of these methods was compared by ROC curves. Results: according to the pathological diagnosis results, the area under the ROC curve was 67.9% and 85.4%, respectively. The sensitivity, specificity and accuracy were 77.8%, 81.8% and 79.3%, respectively. The accuracy was 72.2 / 72.4.The sensitivity, specificity and accuracy of the combined diagnosis were 88.9 and 72.70.The best threshold of ROI A rate for differentiating benign and malignant lymph nodes was 0.20.The diagnostic results of nuclear magnetic resonance imaging were taken as a reference. The area under the ROC curve of elasticity score and joint diagnosis were 74.539% and 76.9%, respectively. The sensitivity, specificity and accuracy of the ROC rate were 85.1and 76.70.The sensitivity, specificity and accuracy of the elastic score were 74.1and 73.3%, respectively; the sensitivity, specificity, and accuracy of the combined diagnosis were 80.7; the sensitivity, specificity, specificity of the combined diagnosis, The accuracy was 92.6% and 80.0% and 86.0% respectively. The best threshold of ROI A rate for differentiating benign and malignant lymph nodes was 0.19. Conclusion the ratio of ROI A combined with the elastic score can improve the accuracy of diagnosis and has a good diagnostic value in the differential diagnosis of benign and malignant axillary lymph nodes. The best diagnostic threshold of ROI A rate for benign and malignant lymph nodes is 0.19-0.20.
【学位授予单位】：兰州大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：R445.1;R733.4

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