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首页> 外文期刊>Ultrasound in Medicine and Biology >Abdominal aortic aneurysm imaging with 3-D ultrasound: 3-D-based maximum diameter measurement and volume quantification
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Abdominal aortic aneurysm imaging with 3-D ultrasound: 3-D-based maximum diameter measurement and volume quantification

机译：3-D超声对腹主动脉瘤成像：基于3-D的最大直径测量和体积定量

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摘要

The clinical reliability of 3-D ultrasound imaging (3-DUS) in quantification of abdominal aortic aneurysm (AAA) was evaluated. B-mode and 3-DUS images of AAAs were acquired for 42 patients. AAAs were segmented. A 3-D-based maximum diameter (Max3-D) and partial volume (Vol30) were defined and quantified. Comparisons between 2-D (Max2-D) and 3-D diameters and between orthogonal acquisitions were performed. Intra- and inter-observer reproducibility was evaluated. Intra- and inter-observer coefficients of repeatability (CRs) were less than 5.18 mm for Max3-D. Intra-observer and inter-observer CRs were respectively less than 6.16 and 8.71 mL for Vol30. The mean of normalized errors of Vol30 was around 7%. Correlation between Max2-D and Max3-D was 0.988 (p < 0.0001). Max3-D and Vol30 were not influenced by a probe rotation of 90°. Use of 3-DUS to quantify AAA is a new approach in clinical practice. The present study proposed and evaluated dedicated parameters. Their reproducibility makes the technique clinically reliable.
机译：评估了3-D超声成像（3-DUS）在量化腹主动脉瘤（AAA）中的临床可靠性。采集了42例AAA的B型和3-DUS图像。 AAA被细分。定义并量化了基于3-D的最大直径（Max3-D）和部分体积（Vol30）。进行了2-D（Max2-D）和3-D直径之间以及正交采集之间的比较。观察者之间和观察者之间的可重复性进行了评估。对于Max3-D，观察者内部和观察者之间的重复性系数（CR）小于5.18 mm。 Vol30的观察者内和观察者间CR分别小于6.16和8.71 mL。 Vol30的标准化误差的平均值约为7％。 Max2-D和Max3-D之间的相关系数为0.988（p <0.0001）。 Max3-D和Vol30不受90°探针旋转的影响。使用3-DUS定量AAA是临床实践中的一种新方法。本研究提出并评估了专用参数。它们的再现性使该技术在临床上可靠。

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