Abstract
The peripheral arterial vessel often appears as an elliptic shape under the constraints of the surrounding tissues. In this study, the gradient-based Hough transform was used to detect the central location of the ellipse and the lumen area of the arterial vessel non-invasively using power Doppler imaging. Sequential ultrasound images were used to construct arterial distension waveforms in both the major- and minor-axis directions for a few cardiac cycles. The common carotid arteries (CCAs) for nine healthy male volunteers (mean age 24 years), in the sitting position, were investigated in vivo. The CCAs (n=9) had a mean diameter of 5.83 mm, and the pulsatile diameter distension was 13.7±1.9%. The brachial artery and dorsalis pedis artery for five healthy male volunteers (mean age 26 years), in the supine position, had mean diameters of 4.03 mm and 2.83 mm and distensions of 16.7±4.6% and 15.5±5.4%, respectively. The movement of the arterial centre location during the cardiac cycle reflected the asymmetry of the reaction forces produced by the surrounding soft tissues. The present method can obtain the response of vessel distension to pulse pressure, as well as the constrained conditions of the arteries.
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Wu, S.M., Shau, Y.W., Chong, F.C. et al. Non-invasive assessment of arterial distension waveforms using gradient-based Hough transform and power Doppler ultrasound imaging. Med. Biol. Eng. Comput. 39, 627–632 (2001). https://doi.org/10.1007/BF02345433
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DOI: https://doi.org/10.1007/BF02345433