›› 2019, Vol. 39 ›› Issue (12): 1427-.doi: 10.3969/j.issn.1674-8115.2019.12.014

• Original article (Clinical research) • Previous Articles     Next Articles

Preliminary study on correlation between carotid viscoelasticity and blood flow shear rate

YANG Xing-yi, LUO Xiang-hong, SHAO Si-hui, DU Lian-fang, LI Zhao-jun   

  1. 1. Fenyang College of Shanxi Medical University, Fenyang 032200, China; 2. Department of Echocardiography, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China; 3. Department of Ultrasound Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
  • Online:2019-12-28 Published:2020-02-06
  • Supported by:
    Medical Guidance Science and Technology Support Project of Shanghai Science and Technology Committee, 16411969300; Shanghai Health and Family Planning Commission Fund, 201640043; Three-year Plan for Clinical Skills and Innovation in Municipal Hospitals, 16CR3105B; Interdisciplinary Program of Shanghai Jiao Tong University, YG2015MS28; Shanghai Songjiang District Science and Technology Project, 18sjkjgg72, 18sjkjgg53

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Abstract: Objective · To examine the carotid viscoelasticityusing ultrasonic shear wave dispersion (USWD) technique, and to preliminarily analyze its correlation with blood flow shear rate. Methods · Forty-five patients of General Surgery Department of Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine December 2018 to January 2019 were recruited, and divided into the elder group ( ≥ 50 years old) and the younger group (R), shear wave dispersion (SWDR), blood flow maximum shear rate (SRmax) and mean shear rate (SRmean). The correlations between SWER, SWDR and blood flow shear rate were analyzedPearson correlation, respectively. Results · ①Compared with the younger group, the carotid artery SWER, SWDR, SRmax and SRmean of the patients in the elder group were lower (all PR and SWDR of carotid artery of all patients were positively correlated with SRmax and SRmean, respectively (all PConclusion · Carotid arterial viscoelastic index based on USWD technique is closely related to the blood flow shear rate, which is expected to provide a new perspective for the study of carotid arterial diseases.

Key words: ultrasonic shear wave dispersion (USWD), carotid artery, shear rate, viscoelasticity