Masayoshi Yoshida;Sreeraman Rajan;Andy Huang;Yuu Ono
发明人:
Yuu Ono,Masayoshi Yoshida,Andy Huang,Sreeraman Rajan
申请号：
US16439850
公开号：
US20190380677A1
申请日:
2019.06.13
申请国别(地区):
US
年份:
2019
代理人:
摘要：
Changes in the mechanical and/or physiological properties of blood vessel serve as important indicators for prediction of cardiovascular disease. One challenge of the ultrasonic blood vessel measurement is the compression of the vessel due to the weight of a conventional ultrasound probe employed, resulting in the error on the diameter estimation. The presented invention addresses this issue with low-cost wearable ultrasound film sensors, which is flexible and lightweight so that it does not deform the blood vessel of interest beneath the sensor or restrict its motion during the measurement. In the preferred embodiment, the sensor is attached on a body surface above a blood vessel of interest. Pulsed ultrasound is transmitted into the body and the echoes from the posterior and anterior boundaries of a blood vessel are acquired with an ultrasound M-mode measurement. Then, the depth of each boundary is obtained with an ultrasound time of light technique. Finally, the blood vessel diameter is calculated by subtracting the depth of posterior boundary from that of anterior boundary of the blood vessel.
