B7-a1 - Determination of pulse wave velocity (PWV) in arteries using high-frequency and single-channel focused ultrasound
- Event
- 2025 ICU PADERBORN - 9th International Congress on Ultrasonics
2025-09-21 - 2025-09-25
Paderborn - Band
- Lectures
- Chapter
- B7-a - High-Frequency Ultrasound Imaging
- Author(s)
- A. B. Amado Rey, T. Stieglitz - University of Freiburg, Freiburg (Germany), L. Elvira, C. M. Duran Gomez, R. Shaporin, J. Alarcón - Spanish National Research Council(CSIC), Madrid (Spain)
- Pages
- 153 - 156
- DOI
- 10.5162/Ultrasonic2025/B7-a1
- ISBN
- 978-3-910600-08-9
- Price
- free
Abstract
Pulse wave velocity (PWV) is a key indicator of our vascular age, a risk predictor of cardiovascular disease. The gold-standard method to measure PWV relies on the measurement of the carotid-femoral arterial distance, and it is not very reliable, due to the changes in the arterial tree. We present in this paper a method to measure local PWV based on high-frequency ultrasound, with a mono channel transducer at 20 MHz, at the arterial site of measurements. We performed in-vitro measurements in a phantom with tubes of 1.5 mm of diameter. Four ultrasound methods to extract PWV based on difference velocity estimation are compared. PWV was validated with pressure sensors and gave a mean error of only 1.1 m/s.