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Myocardial passive shear wave detection

  • Delft University of Technology
  • Chinese Academy of Sciences

Research output: Chapter/Conference proceedingConference proceedingAcademicpeer-review

12 Citations (Scopus)
42 Downloads (Pure)

Abstract

We studied the mechanical waves after mitral and aortic valve closure in the septal wall of 34 pigs (18 diabetic for heart failure and 16 controls), using high frame rate imaging on a programmable commercial ultrasound machine. The wave pattern was extracted from the data through a local tissue velocity estimator based on phase correlation. The wave propagation velocity was determined by manual estimates, cross-correlation, and Radon and Fourier transforms resulting in waves propagation velocities between 1.5 and 9 m/s, with spectral contents in the audible range of the heart tones. The Fourier analysis showed that the propagation velocity increases with frequency, which is consistent with asymmetric Lamb waves as can be expected from the geometry of the septal wall surrounded by blood.

Original languageEnglish
Title of host publication2015 IEEE International Ultrasonics Symposium, IUS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479981823
DOIs
Publication statusPublished - 13 Nov 2015
EventIEEE International Ultrasonics Symposium, IUS 2015 - Taipei, Taiwan
Duration: 21 Oct 201524 Oct 2015

Publication series

Series2015 IEEE International Ultrasonics Symposium, IUS 2015

Conference

ConferenceIEEE International Ultrasonics Symposium, IUS 2015
Country/TerritoryTaiwan
CityTaipei
Period21/10/1524/10/15

Bibliographical note

Publisher Copyright: © 2015 IEEE.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

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