TY - GEN
T1 - A model-free approach to probe motion artifacts suppression for in vivo imaging with probe oscillation shear wave elastography (PROSE)
AU - Mellema, Daniel C.
AU - Song, Pengfei
AU - Manduca, Armando
AU - Urban, Matthew W.
AU - Kinnick, Randall R.
AU - Greenleaf, James F.
AU - Chen, Shigao
N1 - Funding Information:
ACKNOWLEDGEMENTS AND DISCLOSURES This work was supported by the National Institutes of Health (NIH) grant DK106957. The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIDDK and NIH. Mayo Clinic and some of the authors have financial interest in the technology described here.
Publisher Copyright:
© 2017 IEEE.
PY - 2017/10/31
Y1 - 2017/10/31
N2 - Shear wave elastography methods are able to accurately measure tissue stiffness, allowing these techniques to monitor the progression of hepatic fibrosis. While many methods rely on acoustic radiation force (ARF) to generate shear waves for two-dimensional (2D) imaging, probe oscillation shear wave elastography (PROSE) provides an alternative approach by generating shear waves through continuous vibration of the ultrasound probe while simultaneously detecting the resulting motion. The generated shear wave field in in vivo liver is complicated, and the amplitude and quality of these shear waves can be influenced by the placement of the vibrating probe. It was not possible to fully suppress residual motion artifacts with established filtering methods. Instead, the shear wave signal was decoupled from motion from other sources with empirical mode decomposition (EMD). This method was evaluated in a phantom as well as in in vivo livers from five volunteers. PROSE results were well correlated well with independent measurements using the commercial General Electric Logiq E9 scanner.
AB - Shear wave elastography methods are able to accurately measure tissue stiffness, allowing these techniques to monitor the progression of hepatic fibrosis. While many methods rely on acoustic radiation force (ARF) to generate shear waves for two-dimensional (2D) imaging, probe oscillation shear wave elastography (PROSE) provides an alternative approach by generating shear waves through continuous vibration of the ultrasound probe while simultaneously detecting the resulting motion. The generated shear wave field in in vivo liver is complicated, and the amplitude and quality of these shear waves can be influenced by the placement of the vibrating probe. It was not possible to fully suppress residual motion artifacts with established filtering methods. Instead, the shear wave signal was decoupled from motion from other sources with empirical mode decomposition (EMD). This method was evaluated in a phantom as well as in in vivo livers from five volunteers. PROSE results were well correlated well with independent measurements using the commercial General Electric Logiq E9 scanner.
KW - Continuous vibration
KW - Liver elastography
KW - Mechanical vibration
KW - Shear wave elastography
UR - http://www.scopus.com/inward/record.url?scp=85039416170&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85039416170&partnerID=8YFLogxK
U2 - 10.1109/ULTSYM.2017.8092641
DO - 10.1109/ULTSYM.2017.8092641
M3 - Conference contribution
AN - SCOPUS:85039416170
T3 - IEEE International Ultrasonics Symposium, IUS
BT - 2017 IEEE International Ultrasonics Symposium, IUS 2017
PB - IEEE Computer Society
T2 - 2017 IEEE International Ultrasonics Symposium, IUS 2017
Y2 - 6 September 2017 through 9 September 2017
ER -