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Detection of changes in cervical softness using shear wave speed in early vs. late pregnancy: an in vivo cross-sectional study

机译:妊娠早期和晚期使用剪切波速度检测宫颈柔软度的变化:体内横断面研究

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摘要

The aim of this study was to assess the ability of Shear Wave Elasticity Imaging (SWEI) to detect changes in cervical softness between early and late pregnancy. Using a cross-sectional study design, shear wave speed (SWS) measurements were obtained from women in the 1st trimester (5-14 weeks gestation) and compared to estimates from a previous study of women at term (37-41 weeks). Two sets of 5 SWS measurements were made using commercial SWEI applications on an ultrasound system equipped with a prototype catheter transducer (128 elements, 3mm diameter, 14mm aperture). Average SWS estimates were 4.42±0.32 m/s (n=12) for 1st trimester and 2.13±0.66 m/s (n = 18) for 3rd trimester (p<0.0001). The AUC was 0.95 (95% CI: 0.82-0.99) with a sensitivity and specificity of 83%. SWS estimates indicated that the 3rd trimester cervix is significantly softer than the 1st trimester cervix. SWEI methods may be promising for assessing changes in cervical softness.
机译:这项研究的目的是评估剪切波弹性成像(SWEI)检测早孕和晚期妊娠之间宫颈柔软度变化的能力。使用横断面研究设计,从妊娠第一三个月(妊娠5-14周)的妇女中获取了横波速度(SWS)的测量值,并将其与足月妇女的先前研究的估计值进行了比较(37-41周)。使用商业SWEI应用程序在配有原型导管换能器(128个元件,直径3mm,孔径14mm)的超声系统上进行两组5次SWS测量。前三个月的SWS平均估计值为4.42±0.32 m / s(n = 12),三个月中为2.13±0.66 m / s(n = 18)(三个月)( p <0.0001)。 AUC为0.95(95%CI:0.82-0.99),敏感性和特异性为83%。 SWS的估计表明,第三个妊娠期的子宫颈比第三个妊娠期的子宫颈明显柔软。 SWEI方法可能有望用于评估宫颈柔软度的变化。

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