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首页> 外文期刊>Journal of Clinical Ultrasound: JCU >Reproducibility of fetal renal pelvis volume assessed by three-dimensional ultrasonography with two different measurement techniques
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Reproducibility of fetal renal pelvis volume assessed by three-dimensional ultrasonography with two different measurement techniques

机译：用两种不同的测量技术通过三维超声检查评估胎儿肾盂体积的可重复性

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Purpose: To evaluate reproducibility of fetal renal pelvis volume as assessed by the Virtual Organ Computer Aided AnaLysis (VOCAL) imaging program and by Automatic Volume Calculation (SonoAVC). In addition, the intra- and interobserver reliability of fetal renal pelvis volume measurements with SonoAVC were established. Methods:: In this study, the fetal renal pelvis volume was measured using 3D ultrasonography in 76 kidneys of 66 fetuses with renal pelvis dilatation in the second or third trimester of pregnancy. After volume acquisition by one observer, the reproducibility of volume calculation was assessed using VOCAL imaging program and SonoAVC by two observers. Intra- and interobserver reproducibility was evaluated by calculating intraclass correlation coefficients (ICC), coefficient of variation (CV) and repeatability coefficient (r). Bland-Altman plots were generated to explore agreement. Results:: A high degree of reproducibility was observed between VOCAL and SonoAVC, ICC of 0.989; 95% CI 0.983-0.993, respectively. Intraobserver reproducibility of volume measurements performed by SonoAVC demonstrated a high degree of reliability with ICC of 0.995 (95% CI 0.993-0.997), CV 6.05% and r of 0.75. The interobserver reproducibility with ICC of 0.995 (95% CI 0.992-0.997), CV 10.14% and r 1.21 was also indicative of good reliability. Conclusion:: Volume measurements of fetal renal pelvis performed by SonoAVC renders reproducible measurements in comparison with the VOCAL imaging program. There is no significant difference between VOCAL imaging program and SonoAVC. The intra- and interobserver reliability of the fetal renal pelvis measurements made by SonoAVC were considered to be very good. SonoAVC, however, needs post processing in the majority of cases but is less time consuming than VOCAL.
机译：目的：通过虚拟器官计算机辅助分析（VOCAL）成像程序和自动体积计算（SonoAVC）评估胎儿肾盂体积的可重复性。此外，建立了使用SonoAVC进行胎儿肾盂容积测量的观察者内和观察者间可靠性。方法：：在本研究中，使用3D超声技术对妊娠中期或中期妊娠的66名胎儿的76例肾脏肾盂扩张的肾脏进行了3D超声测量。一名观察员获得体积后，两名观察员使用VOCAL成像程序和SonoAVC评估了体积计算的可重复性。通过计算类内相关系数（ICC），变异系数（CV）和重复性系数（r）评估观察者之间和观察者之间的可重复性。生成了Bland-Altman图以探索一致性。结果：VOCAL和SonoAVC之间的重现性很高，ICC为0.989; 95％CI分别为0.983-0.993。由SonoAVC执行的观察者内测量的可重复性显示出高度的可靠性，ICC为0.995（95％CI 0.993-0.997），CV 6.05％和r为0.75。 ICC为0.995（95％CI 0.992-0.997），CV 10.14％和r 1.21的观察者间可重复性也表明了良好的可靠性。结论：与VOCAL成像程序相比，由SonoAVC执行的胎儿肾盂的体积测量可提供可重复的测量结果。 VOCAL成像程序和SonoAVC之间没有显着差异。通过SonoAVC进行的胎儿肾盂测量的观察者内部和观察者之间的可靠性被认为非常好。但是，在大多数情况下，SonoAVC需要后期处理，但比VOCAL耗时少。

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