TY - GEN
T1 - Optimal clutter filtering for improved perfusion sensitivity
AU - Kim, Minwoo
AU - Hedhli, Jamila
AU - Dobrucki, Lawrence
AU - Abbey, Craig
AU - Insana, Michael
PY - 2017/10/31
Y1 - 2017/10/31
N2 - Power Doppler (PD) is the preferred technique for accessing weakly scattering blood cells with low-velocity flow. However, strong clutter decreases sensitivity of the blood signals, which degrades micro-vasculature imaging. Eigen-based filtering methods have been developed to separate the independent scattering sources using both spatial and slow-time statistics of echo data. We recently found that extending data into frame-time sampled on the order of Hz increases the sensitivity of the weak perfusion signal. Higher-order singular value decomposition (HOSVD) effectively decouples these sources. The challenge is to select suitable subspaces to isolate the desired blood components. We propose a subspace selection strategy for optimal HOSVD performance.
AB - Power Doppler (PD) is the preferred technique for accessing weakly scattering blood cells with low-velocity flow. However, strong clutter decreases sensitivity of the blood signals, which degrades micro-vasculature imaging. Eigen-based filtering methods have been developed to separate the independent scattering sources using both spatial and slow-time statistics of echo data. We recently found that extending data into frame-time sampled on the order of Hz increases the sensitivity of the weak perfusion signal. Higher-order singular value decomposition (HOSVD) effectively decouples these sources. The challenge is to select suitable subspaces to isolate the desired blood components. We propose a subspace selection strategy for optimal HOSVD performance.
UR - http://www.scopus.com/inward/record.url?scp=85039447495&partnerID=8YFLogxK
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U2 - 10.1109/ULTSYM.2017.8092680
DO - 10.1109/ULTSYM.2017.8092680
M3 - Conference contribution
AN - SCOPUS:85039447495
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 -