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Objective <p>This study aims to investigate the correlation and consistency between continuous wave (cw) patch ultrasound and traditional pulse wave (pw) ultrasound in measuring blood flow parameters of the common carotid artery and radial artery.</p> Methods <p>In this prospective, single-blind, observational study, healthy participants underwent examinations using both conventional ultrasound and patch ultrasound for the common carotid artery and radial artery within a short time interval. The main parameters obtained were analyzed for their correlation and consistency.</p> Results <p>Sixty-four healthy volunteers completed the study, the median age is 29&#xa0;years and 60.9% being female. The correlation coefficients for peak systolic velocity (PS), end-diastolic velocity (ED), and velocity–time integral (VTI) of the common carotid artery between cw patch ultrasound and pw conventional ultrasound were 0.7429 (95% CI 0.6081 to 0.8360), 0.8098 (95% CI 0.7041 to 0.8803), and 0.7879 (95% CI 0.6723 to 0.8660), respectively. The Bland–Altman consistency test for VTI demonstrated good agreement between the two methods, with an average deviation of −&#xa0;0.36&#xa0;cm. The correlation between the resistance index (RI) of pw traditional ultrasound on the snuff box artery (distal radial artery) and RI of cw patch ultrasound on the radial artery was 0.7162 (95% CI 0.5709 to 0.8180), while the correlation of the pulsatility index (PI) between the two methods was 0.8077 (95% CI 0.6973 to 0.8807). The consistency evaluation of RI and PI measured by the two methods was satisfactory. No significant correlation was observed between the radial artery and the common carotid artery in terms of blood flow velocity, VTI, or other parameters.</p> Conclusion <p>Continuous wave patch ultrasound demonstrates a strong correlation with traditional pulse wave ultrasound in blood flow Doppler metrics. It can serve as an effective alternative to traditional ultrasound for monitoring the velocity time integral (VTI) of the common carotid artery and the resistance index (RI) and pulsatility index (PI) of the snuff box artery.</p>

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Hemodynamic assessment of the common carotid artery and radial artery in healthy human subjects: a comparison of continuous wave patch ultrasound and conventional pulse wave ultrasound

  • 期刊论文

  • 发表日期：

    2026年5月19日

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  • Shupeng Wang,
  • Xiaojiao Yuan,
  • Yan Liu,
  • Qian Liu,
  • Yuanjing Guo,
  • Chenchen Lv,
  • Ping Wang

摘要

Objective

This study aims to investigate the correlation and consistency between continuous wave (cw) patch ultrasound and traditional pulse wave (pw) ultrasound in measuring blood flow parameters of the common carotid artery and radial artery.

Methods

In this prospective, single-blind, observational study, healthy participants underwent examinations using both conventional ultrasound and patch ultrasound for the common carotid artery and radial artery within a short time interval. The main parameters obtained were analyzed for their correlation and consistency.

Results

Sixty-four healthy volunteers completed the study, the median age is 29 years and 60.9% being female. The correlation coefficients for peak systolic velocity (PS), end-diastolic velocity (ED), and velocity–time integral (VTI) of the common carotid artery between cw patch ultrasound and pw conventional ultrasound were 0.7429 (95% CI 0.6081 to 0.8360), 0.8098 (95% CI 0.7041 to 0.8803), and 0.7879 (95% CI 0.6723 to 0.8660), respectively. The Bland–Altman consistency test for VTI demonstrated good agreement between the two methods, with an average deviation of − 0.36 cm. The correlation between the resistance index (RI) of pw traditional ultrasound on the snuff box artery (distal radial artery) and RI of cw patch ultrasound on the radial artery was 0.7162 (95% CI 0.5709 to 0.8180), while the correlation of the pulsatility index (PI) between the two methods was 0.8077 (95% CI 0.6973 to 0.8807). The consistency evaluation of RI and PI measured by the two methods was satisfactory. No significant correlation was observed between the radial artery and the common carotid artery in terms of blood flow velocity, VTI, or other parameters.

Conclusion

Continuous wave patch ultrasound demonstrates a strong correlation with traditional pulse wave ultrasound in blood flow Doppler metrics. It can serve as an effective alternative to traditional ultrasound for monitoring the velocity time integral (VTI) of the common carotid artery and the resistance index (RI) and pulsatility index (PI) of the snuff box artery.