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 language | English |
|---|---|
| Title of host publication | 2015 IEEE International Ultrasonics Symposium, IUS 2015 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Electronic) | 9781479981823 |
| DOIs | |
| Publication status | Published - 13 Nov 2015 |
| Event | IEEE International Ultrasonics Symposium, IUS 2015 - Taipei, Taiwan Duration: 21 Oct 2015 → 24 Oct 2015 |
Publication series
| Series | 2015 IEEE International Ultrasonics Symposium, IUS 2015 |
|---|
Conference
| Conference | IEEE International Ultrasonics Symposium, IUS 2015 |
|---|---|
| Country/Territory | Taiwan |
| City | Taipei |
| Period | 21/10/15 → 24/10/15 |
Bibliographical note
Publisher Copyright: © 2015 IEEE.UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
-
SDG 3 Good Health and Well-being
Fingerprint
Dive into the research topics of 'Myocardial passive shear wave detection'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver