Studies to investigate the ultrasound elasticity measurement of the carotid artery, for early detection of arteriosclerosis, are ongoing. In the long-axis cross-sectional measurement in vivo, the position where the intima-media complex (IMC) is visible on the B-mode image was assumed to be the central axis of the short-axis view of the carotid artery. However, the IMC is also visible near the central axis of the short-axis view of the carotid artery. In the present study, accuracy in elasticity measurement within the IMC visible range was evaluated through a phantom experiment. The elasticities of the posterior wall measured at plural points within the IMC visible range differed by up to 6%. From the experimental results, we concluded that for the highest accuracy, it is important to measure along the central axis of the short-axis view of the carotid artery.

研究颈动脉超声弹性测量以早期检测动脉硬化的研究正在进行中。在体内长轴横截面测量中，假设内膜中膜复合体 (IMC) 在 B 模式图像上可见的位置是颈动脉短轴视图的中心轴。然而，在颈动脉短轴视图的中心轴附近也可以看到 IMC。在本研究中，通过体模实验评估了 IMC 可见范围内弹性测量的准确性。在 IMC 可见范围内的多个点测量的后壁弹性差异高达 6%。根据实验结果，我们得出结论，为了获得最高的准确度，