实时三维超声成像技术对颈动脉粥样斑块体积测定的定量分析

发布时间：2018-03-11 00:39

  本文选题：超声检查　切入点：颈动脉　出处：《放射学实践》2017年05期 　论文类型：期刊论文

【摘要】：目的:探讨实时三维超声成像(RT-3DU)技术用于定量分析颈动脉粥样硬化斑块体积的可行性及准确性。方法:对23例颈动脉粥样硬化患者行实时三维超声检查,对获取的35个斑块进行三维重建,所有斑块体积由2位超声医师进行随机双盲独立测定,1个月后,由其中1位医师再次进行测定。结果:RT-3DU定量测量的35个斑块的体积为(171±116)mm3。对于斑块体积的定量测量,两幅Bland-Altman图中仅见2.9%(1/35)的分散点在一致性界限外,两幅图差值均数的绝对值与差值均数为0的基线最大仅相差1.51mm3;对于管腔体积狭窄率的定量测量,两幅Bland-Altman图中仅见2.9%(1/35)的分散点在一致性界限外,两幅图差值均数的绝对值与差值均数为0的基线最大仅相差0.63%;2位观察者间及观察者内4组数据的组内相关系数均≥0.900,表示观察者间和观察者内部的一致性较高。结论:RT-3DU可以立体显示斑块的空间形态,斑块体积及管腔体积狭窄率的定量测量在观察者间和观察者内部均有较高的一致性,为动脉粥样硬化斑块的定性诊断和定量测量提供了新的检查手段。
[Abstract]:Objective: to investigate the feasibility and accuracy of real-time three-dimensional ultrasound (RT-3DU) technique for quantitative analysis of carotid atherosclerotic plaque volume. Methods: 23 patients with carotid atherosclerosis were examined by real-time three-dimensional ultrasound. Three-dimensional reconstruction of 35 plaques was performed, and all plaque volumes were measured by two ultrasound physicians at random and double-blind, and one month later, Results the volume of 35 plaques measured quantitatively by 1: RT-3DU was 171 卤116mm3. For the quantitative measurement of plaque volume, the dispersion points in the two Bland-Altman diagrams were only 2.9 / 35) outside the consistency limit. The maximum difference between the absolute value of the difference mean and that of the baseline with the difference mean 0 is only 1.51mm3.For the quantitative measurement of lumen volume stenosis, the dispersion points of the two Bland-Altman diagrams are only 2.9 / 35) outside the consistency limit. The maximum difference between the absolute value and the average value of the difference between the two maps is 0.63 and 0.63 respectively, and the intra-group correlation coefficients of the four groups of data are all 鈮，

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