Flexible ultrasound array transducer technology for measuring intravascular diameter and blood flow velocity
10.13929/j.issn.1003-3289.2025.05.021
- VernacularTitle:柔性超声阵列换能技术用于测量血管内径及血液流速
- Author:
Xiaomin REN
1
;
Shuping LIU
;
Hongbo CHANG
;
Guozheng ZHAO
;
Siying CHEN
;
Yahui SUN
;
Li LI
Author Information
1. 河北北方学院研究生院,河北 张家口 075000
- Publication Type:Journal Article
- Keywords:
ultrasonography;
blood vessels;
transducers
- From:
Chinese Journal of Medical Imaging Technology
2025;41(5):794-798
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the feasibility of prototype of flexible ultrasound array transducer for measuring intravascular diameter and blood flow velocity.Methods A prototype of flexible ultrasonic array transducer composed of a surface mount flexible ultrasonic array transducer(referred to as the transducer)and acquisition system was designed and fabricated.Doppler body model and vascular simulation control system was used to simulate human blood.Mindray M7 color multi-functional ultrasound diagnostic instrument(abbreviated as M7)and the prototype were adopted to detect pulse wave excitation mode,spectral morphology,echo signal time interval,blood flow velocity,etc.Taken the results of M7 as standards,the effectiveness of the prototype was evaluated.Then the inner diameter and flow velocity of left common carotid artery,left brachial artery and left radial artery of 20 healthy controls(HC)were measured respectively using M7 and the prototype,and the consistency of measurement results were analyzed to evaluate the accuracy of the prototype.The safety of the prototype was evaluated according to subjectively scoring the comfort level of HC applying the transducer and whether there was skin discomfort,injury,etc.after removing the transducer.Results The collected blood flow spectrum of the above vascular simulation control system acquire with the prototype were clear,and the spectral morphology,flow velocity,as well as echo signal time interval were basically consistent with those of M7.The consistency of the inner diameter of left common carotid artery,left brachial artery and left radial artery measured by the prototype and M7 in 20 HC were all very strong(ICC=0.919-0.992),while of flow velocities were moderate or very strong(ICC=0.524-0.831).The subjective score of comfort level of application of transducer was 3(2,3),and no skin discomfort occurred.Conclusion Flexible ultrasound array transducer technology could be used to measure intravascular diameter and blood flow velocity.
