应用一致性得分及权重策略规避超声成像在甲状腺结节诊断中的误诊现象  

Avoid Diagnostic Error for Ultrasound in Diagnosis of Benign and Malignant Thyroid Nodule by Consistency Score and Weight

作　　者：刘丽[1] 李紫瑶[1] 田家玮[1] 

机构地区：[1]哈尔滨医科大学附属第二医院超声科,哈尔滨市150086

出　　处：《中国超声医学杂志》2017年第4期356-358,共3页Chinese Journal of Ultrasound in Medicine

摘　　要：目的应用一致性得分及权重策略规避超声成像在甲状腺结节定性诊断中的误诊现象。方法对500例甲状腺结节患者行超声检查。评估常规超声、弹性成像和二者联合应用在结节定性诊断中的诊断效能。进行多特征一致性打分,并对特征进行多因素COX风险回归,给予特征不同权重。结果常规超声和弹性成像联合应用可降低误诊率;一致性打分越高,诊断准确度越高;弹性评分在甲状腺结节定性诊断中所占权重最大。结论常规超声与弹性成像联合应用可以降低甲状腺结节定性诊断的误诊率,特征一致性打分及特征权重策略可以为诊断提供量化指标。Objective To research the diagnostic error reasons in diagnosis of benign and malignant thyroid nodule using conventional ultrasound and ultrasound elastography. Methods Collecting 500 cases with thyroid nodule, we captured two-di mensional ultrasound images and elastography （UE） images. We calculate efficacy for conventional ultrasound, ultrasound elastography and comprehensive diagnosis. We further used characteristic consistency score to represent misdiagnosis rate. The analysis of characteristic can gave the weight value to every characteristic by Multivariate COX analysis. Results The comprehensive diagnosis gets better diagnostic result. The characteristic consistency score can represent misdiagnosis rate. The weight of characteristic can gave diagnosis some directive opinion. Conclusions It will improve diagnostic accuracy using characteristic consistency score and characteristic weights by analyzing diagnostic error.

关 键 词：超声成像 甲状腺结节 特征一致性 特征权重 误诊剖析 

分 类 号：R445.1[医药卫生—影像医学与核医学] R581[医药卫生—诊断学]