Key result
Ultrasound elasticity measurements of the posterior wall within the intima-media complex visible range differed by up to 6% in a phantom experiment.
Why the study?
In carotid artery ultrasound elasticity measurement, the intima-media complex is visible near as well as along the central axis of the short-axis view, raising questions about measurement accuracy across this visible range.
Does measurement position within the intima-media complex visible range affect the accuracy of ultrasound elasticity measurement in a phantom model?
Does measurement position within the intima-media complex visible range affect the accuracy of ultrasound elasticity measurement in a phantom model?
For the highest accuracy in ultrasound elasticity measurement of the carotid artery, it is important to measure along the central axis of the short-axis view.
Measurement position may influence elasticity accuracy; leaves open standardization of carotid ultrasound protocols.
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.
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Akiyama et al. (2021) studied arteriosclerosis. ultrasound elasticity measurement was evaluated on accuracy in elasticity measurement. Ultrasound elasticity measurements of the posterior wall within the intima-media complex visible range differed by up to 6% in a phantom experiment.
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