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Radiology:三维US在先天性髋关节发育不良中的价值

2019-02-13 shaosai MedSci原创

本研究旨在验证三维(3D)超声(US)髋臼几何特征在诊断先天性髋关节发育不良(DDH)的准确性。

本研究旨在验证三维(3D)超声(US)髋臼几何特征在诊断先天性髋关节发育不良(DDH)的准确性。

本研究对1728例怀疑DDH的婴儿在常规2D US的基础上进行3D US检查。临床随访6个月以上后诊断分别为正常(n = 1347)、临界值(Graf IIa; n = 140)和发育不良(Graf IIb以上, n = 241)。在检查者输入1分钟后利用自带软件计算管关节模型指标(3D后前α角和密切半径)。利用Logistic回归分析预测临床诊断(正常=0,发育不良=1)。输出值代表发育不良可能性0-1(>0.9为发育不良,0.11-0.89为临界值,<0.1为正常)。

结果为,3D US指标 ROC曲线下面积与2Dα角一样高(0.996 vs 0.987)。3D US有助于对97.5% (235/241)发育不良和99.4% (1339/1347)正常髋关节正确分类。其中起初2D US诊断为临界值的患者中,有69.3% (97/140)患者在3D US下诊断为髋关节发育不良。

本研究表明,3D US自动计算髋臼形态3D指标诊断DDH的价值与2D US的一样高。3D US减少了尚需随访临界值患者仅2/3。

原始出处:

Zonoobi D, Hareendranathan A, Mostofi E,et al.Developmental Hip Dysplasia Diagnosis at Three-dimensional US: A MulticenterStudy.Radiology.DOI:10.1148/radiol.2018172592

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    2019-02-15 neurowu
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    2019-02-15 huirong
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