TY - GEN
T1 - Cardiac atrial kick shear wave elastography with ultrafast diverging wave imaging
T2 - 2017 IEEE International Ultrasonics Symposium, IUS 2017
AU - Engel, Aaron
AU - Hsu, Hao
AU - Song, Pengfei
AU - Bashford, Gregory
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/10/31
Y1 - 2017/10/31
N2 - Increased myocardial stiffness is characteristic of many diseases, leads to a loss of diastolic function, and is a cause of diastolic heart failure (DHF). Methods to estimate myocardial stiffness include Shear Wave Elastography (SWE). Currently, ultrasound-based cardiac SWE includes acoustic radiation force (ARF)-based methods; however, the in vivo generation and detection of the shear waves in myocardium is significantly degraded due to limited ARF penetration and clutter noise. Consistently successful cardiac SWE is limited to low BMI patients. The objective of this research is to develop an ultrafast cardiac SWE technique where the shear wave is generated by the mechanical stimulus of the diastolic atrial kick. The amplitude of this wave is at least one order of magnitude higher than ARF-induced shear waves and thus more easily visualized, having a higher chance of success in a broader patient population.
AB - Increased myocardial stiffness is characteristic of many diseases, leads to a loss of diastolic function, and is a cause of diastolic heart failure (DHF). Methods to estimate myocardial stiffness include Shear Wave Elastography (SWE). Currently, ultrasound-based cardiac SWE includes acoustic radiation force (ARF)-based methods; however, the in vivo generation and detection of the shear waves in myocardium is significantly degraded due to limited ARF penetration and clutter noise. Consistently successful cardiac SWE is limited to low BMI patients. The objective of this research is to develop an ultrafast cardiac SWE technique where the shear wave is generated by the mechanical stimulus of the diastolic atrial kick. The amplitude of this wave is at least one order of magnitude higher than ARF-induced shear waves and thus more easily visualized, having a higher chance of success in a broader patient population.
UR - http://www.scopus.com/inward/record.url?scp=85039427845&partnerID=8YFLogxK
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U2 - 10.1109/ULTSYM.2017.8092904
DO - 10.1109/ULTSYM.2017.8092904
M3 - Conference contribution
AN - SCOPUS:85039427845
T3 - IEEE International Ultrasonics Symposium, IUS
BT - 2017 IEEE International Ultrasonics Symposium, IUS 2017
PB - IEEE Computer Society
Y2 - 6 September 2017 through 9 September 2017
ER -