Acoustic radiation force-induced shear wave propagation in cardiac tissue

Richard R. Bouchard, Patrick D. Wolf, Stephen J. Hsu, Douglas M. Dumont, Gregg E. Trahey

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

Shear wave elasticity imaging (SWEI) was employed to track acoustic radiation force (ARF)-induced shear waves in the myocardium of a beating heart. Shear waves were generated in and tracked through the myocardium of the left ventricular free wall (LVFW) in an in vivo heart that was exposed through a thoracotomy; matched studies were also preformed on an ex vivo myocardial specimen. Average shear wave velocities ranged from 2.22 to 2.53 m/s for the ex vivo specimen and 1.5 to 2.9 m/s (1.5-2.09 m/s during diastole; 2.9 m/s during systole) for in vivo specimens. Despite the known rotation of myocardial fiber orientation with tissue depth, there was no statistically significant shear wave velocity depth dependence observed in any of the experimental trials.

Original languageEnglish (US)
Title of host publicationMedical Imaging 2009
Subtitle of host publicationUltrasonic Imaging and Signal Processing
DOIs
StatePublished - 2009
Externally publishedYes
EventMedical Imaging 2009: Ultrasonic Imaging and Signal Processing - Lake Buena Vista, FL, United States
Duration: Feb 8 2009Feb 9 2009

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume7265
ISSN (Print)1605-7422

Other

OtherMedical Imaging 2009: Ultrasonic Imaging and Signal Processing
Country/TerritoryUnited States
CityLake Buena Vista, FL
Period2/8/092/9/09

Keywords

  • Acoustic radiation force
  • Cardiac tissue
  • Elasticity imaging
  • Shear wave velocimetry

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging

Fingerprint

Dive into the research topics of 'Acoustic radiation force-induced shear wave propagation in cardiac tissue'. Together they form a unique fingerprint.

Cite this