三维超声测量斑块体积的临床应用价值

发布时间：2018-08-06 09:53

【摘要】：目的评价三维超声技术测量颈动脉粥样硬化斑块体积的实用性及可重复性。方法 2名医师独立运用二维及三维超声技术检查52例颈动脉粥样硬化患者,观察斑块的形态、测量斑块的面积及联合运用VOCAL技术测量斑块体积,并用Bland-Altman分析、配对t检验分析2名医师测量的结果。结果二维及三维超声均可以显示斑块的位置、形态及大小,二维超声只能显示斑块某一切面,三维超声可显示斑块的立体形态;同时Bland-Altman分析得出,2名医师测量斑块面积及体积的95%一致性界限分别是:(-0.09,0.10)cm2、(-0.11,0.09)cm3,采用配对t检验分析2名医师测量差值无统计学意义(P0.05),以上统计分析得出2名医师测量斑块面积及体积的一致性较高。结论与二维超声相比,三维超声具有显示斑块立体形态、更准确测量斑块大小的优势,为斑块定量分析提供了一种新的方法。
[Abstract]:Objective to evaluate the practicability and repeatability of three-dimensional ultrasound in measuring carotid atherosclerotic plaque volume. Methods 52 patients with carotid atherosclerosis were examined by two dimensional and three dimensional ultrasound technique. The shape of plaque, the area of plaque and the volume of plaque were measured by VOCAL technique. The plaque size was analyzed by Bland-Altman. Paired t test was used to analyze the results of 2 physicians. Results the location, shape and size of the plaque could be displayed by two-dimensional and three-dimensional ultrasound. Two-dimensional ultrasound could only show one section of plaque, three-dimensional ultrasound could show the three-dimensional shape of plaque. At the same time, Bland-Altman analysis showed that the 95% consistency limits of the area and volume of plaque measured by two physicians were (-0.09 ~ 0.10) cm ~ 2 and (-0.11 ~ 0.09) cm ~ (3) respectively. There was no significant difference between two physicians by paired t test (P0.05). The above statistical analysis showed that two physicians measured plaque. The consistency of block area and volume is high. Conclusion compared with two-dimensional ultrasound, three-dimensional ultrasound has the advantage of displaying three-dimensional shape of plaque and measuring plaque size more accurately, which provides a new method for plaque quantitative analysis.
【作者单位】：广州中医药大学第一附属医院超声科;
【分类号】：R445.1

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