Wall Shear Stress Measurements Based on Ultrasound Vector Flow Imaging: Theoretical Studies and Clinical Examples

Yigang Du, Alfredo Goddi, Chandra Bortolotto, Yingying Shen, Alex Dell'Era, Fabrizio Calliada, Lei Zhu

Research output: Contribution to journalArticlepeer-review

Abstract

Wall shear stress (WSS) is considered as a key factor for atherosclerosis development. Previous WSS research based on pulsed wave Doppler (PWD) showed limitations in complex flows. To improve accuracy for nonlaminar flow, a commercial ultrasound vector flow imaging (UVFI)-based WSS calculation is proposed. Errors for PWD are presented theoretically when flow is not laminar. Based on this, simulations of WSS calculations between PWD and UVFI were set up for different turbulent flows. Our simulations show that UVFI has obviously better performance than PWD in WSS calculations. Wall shear stress results in different flow conditions at carotid bifurcations are described.

Original languageEnglish
Pages (from-to)1649-1664
Number of pages16
JournalJournal of Ultrasound in Medicine
Volume39
Issue number8
DOIs
Publication statusPublished - Aug 1 2020

Keywords

  • Doppler ultrasound
  • nonlaminar flow
  • turbulence
  • vector flow imaging
  • wall shear stress

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging

Fingerprint Dive into the research topics of 'Wall Shear Stress Measurements Based on Ultrasound Vector Flow Imaging: Theoretical Studies and Clinical Examples'. Together they form a unique fingerprint.

Cite this