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1. (WO2013147298) METHODS AND APPARATUS FOR ULTRASOUND IMAGING

Pub. No.:    WO/2013/147298    International Application No.:    PCT/JP2013/059804
Publication Date: Fri Oct 04 01:59:59 CEST 2013 International Filing Date: Wed Mar 27 00:59:59 CET 2013
IPC: A61B 8/08
Applicants: HITACHI ALOKA MEDICAL, LTD.
Inventors: TAMURA, Tadashi
Title: METHODS AND APPARATUS FOR ULTRASOUND IMAGING
Abstract:
A first ultrasound pulse is applied to biological tissue to create shear waves in the biological tissue, a focused ultrasound pulse is transmitted into the biological tissue, one or more ultrasound signals is received from the biological tissue, and shear waves are detected in the biological tissue based on the received one or more ultrasound signals. At least one propagation property associated with the detected shear waves is determined, and the determined at least one propagation property is displayed. A strain image is obtained by either acoustic radiation forces or mechanical compression, e.g., by an ultrasound probe. The strain image is then converted to a new shear wave velocity image by using a previously-obtained shear wave velocity image.