Comparison of Variations Between Spectral Doppler and Gaussian Surface Integration Methods for Umbilical Vein Blood Volume Flow.
Comparison of Variations Between Spectral Doppler and Gaussian Surface Integration Methods for Umbilical Vein Blood Volume Flow.
复制标题
频谱多普勒法与高斯曲面积分法测量脐静脉血流量的比较。
DOI：
10.1002/jum.15411
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发表时间：
2021-03
期刊：
影响因子：
--
通讯作者：
Pinter SZ
中科院分区：
文献类型：
--
作者：
Rubin JM;Li S;Fowlkes JB;Sethuraman S;Kripfgans OD;Shi W;Treadwell MC;Jago JR;Leichner RD;Pinter SZ
我们正在研究一种新的方法来估计血流量，使用三维超声测量总的综合流量通过超声生成的高斯表面，相交的脐带。该方法不做标准1D频谱多普勒体积流量估计通常所需的任何假设。我们比较了脐静脉中不同技术之间的体积流量估计值的变化。该研究获得IRB批准，所有12例受试者均签署了知情同意书。由于我们没有真实脐静脉血流量的参考标准，我们比较了两种流量测量技术测量的变化。沿沿着脐静脉进行至少3次单独的频谱多普勒和3次单独的高斯表面测量。计算每例受试者的流量估计技术的平均值、标准差和变异系数（标准差/平均值）。P < 0.05被认为是有意义的。使用频谱多普勒方法估计的平均血流量范围为174 - 577 mL/min，使用高斯表面积分（GSI）方法估计的平均血流量范围为100 - 341 mL/min。频谱多普勒和GSI方法的平均标准差分别为161 ± 95 mL/min和45 ± 48 mL/min（p < 0.003）。频谱多普勒法和GSI法的平均变异系数分别为0.46 ± 0.17和0.18 ± 0.14（p< 0.002）。使用3D超声的新的体积流量估计方法似乎比标准的1D频谱多普勒方法具有显著更少的估计变化。
We are studying a new method for estimating blood volume flow that uses 3D ultrasound to measure the total integrated flux through an ultrasound-generated Gaussian surface that intersects the umbilical cord. This method makes none of the assumptions typically required with standard 1D spectral Doppler volume flow estimates. We compared the variations in volume flow estimates between techniques in the umbilical vein. The study was IRB approved and all 12 subjects gave informed consent. Because we had no reference standard for the true umbilical vein volume flow, we compared the variations of the measurements for the two flow measuring techniques. At least 3 separate spectral Doppler and 3 separate Gaussian surface measurements were made along the umbilical vein. Means, standard deviations, and coefficients of variation (standard deviation/mean) for the flow estimation techniques were calculated for each subject. P < 0.05 was considered significant. The range of the mean volume flow estimates was 174 – 577 mL/min using the spectral Doppler method and 100 – 341 mL/min using the Gaussian surface integration (GSI) method. The mean standard deviations were 161 ± 95 mL/min and 45 ± 48 mL/min for the spectral Doppler and GSI methods respectively (p < 0.003). The mean coefficients of variation were 0.46 ± 0.17 and 0.18 ± 0.14 for the spectral Doppler and GSI methods respectively (p< 0.002). A new volume flow estimation method using 3D ultrasound appears to have significantly less variation in estimates than the standard 1D spectral Doppler method.
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