TY - GEN
T1 - Shear wave elastography on the GE LOGIQ E9 with Comb-push Ultrasound Shear Elastography (CUSE) and time aligned sequential tracking (TAST)
AU - Song, Pengfei
AU - Macdonald, Michael C.
AU - Behler, Russell H.
AU - Lanning, Justin D.
AU - Wang, Michael H.
AU - Urban, Matthew W.
AU - Manduca, Armando
AU - Zhao, Heng
AU - Callstrom, Matthew R.
AU - Alizad, Azra
AU - Greenleaf, James F.
AU - Chen, Shigao
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/10/20
Y1 - 2014/10/20
N2 - Two-dimensional (2D) shear wave elastography has emerged as a popular clinical and research tool for a variety of applications. Implementing 2D shear wave elastography on a conventional ultrasound scanner, however, is a challenging task due to the low imaging frame rate, which is essentially limited by the low parallel beamforming capability provided by the hardware beamformers on these scanners. This study developed a time aligned sequential tracking (TAST) technique that enables high pulse repetition frequency (PRF) shear wave tracking on conventional ultrasound scanners. The Comb-push Ultrasound Shear Elastography (CUSE) technique was combined with TAST to realize large field-of-view (FOV) 2D shear wave elastography. CUSE and TAST were implemented on the General Electric LOGIQ E9 (LE9) scanner. Phantom experiments showed that the LE9 could reconstruct large FOV, high quality 2D shear wave speed maps with accurate shear wave speed measurements that are in good agreement to other 2D shear wave imaging techniques. An inclusion phantom study showed that LE9 had comparable performance to the Aixplorer (Supersonic Imagine) in terms of bias and precision in measuring different sized inclusions. Finally, in vivo case studies of a breast with a malignant mass, and a liver from a healthy subject demonstrated the feasibility of using LE9 for in vivo 2D shear wave elastography.
AB - Two-dimensional (2D) shear wave elastography has emerged as a popular clinical and research tool for a variety of applications. Implementing 2D shear wave elastography on a conventional ultrasound scanner, however, is a challenging task due to the low imaging frame rate, which is essentially limited by the low parallel beamforming capability provided by the hardware beamformers on these scanners. This study developed a time aligned sequential tracking (TAST) technique that enables high pulse repetition frequency (PRF) shear wave tracking on conventional ultrasound scanners. The Comb-push Ultrasound Shear Elastography (CUSE) technique was combined with TAST to realize large field-of-view (FOV) 2D shear wave elastography. CUSE and TAST were implemented on the General Electric LOGIQ E9 (LE9) scanner. Phantom experiments showed that the LE9 could reconstruct large FOV, high quality 2D shear wave speed maps with accurate shear wave speed measurements that are in good agreement to other 2D shear wave imaging techniques. An inclusion phantom study showed that LE9 had comparable performance to the Aixplorer (Supersonic Imagine) in terms of bias and precision in measuring different sized inclusions. Finally, in vivo case studies of a breast with a malignant mass, and a liver from a healthy subject demonstrated the feasibility of using LE9 for in vivo 2D shear wave elastography.
KW - CUSE
KW - LOGIQ E9
KW - acoustic radiation force
KW - shear wave elastography
UR - http://www.scopus.com/inward/record.url?scp=84910027809&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84910027809&partnerID=8YFLogxK
U2 - 10.1109/ULTSYM.2014.0270
DO - 10.1109/ULTSYM.2014.0270
M3 - Conference contribution
AN - SCOPUS:84910027809
T3 - IEEE International Ultrasonics Symposium, IUS
SP - 1101
EP - 1104
BT - IEEE International Ultrasonics Symposium, IUS
PB - IEEE Computer Society
T2 - 2014 IEEE International Ultrasonics Symposium, IUS 2014
Y2 - 3 September 2014 through 6 September 2014
ER -