. Author manuscript; available in PMC: 2010 Jan 25.

Published in final edited form as: Ultrason Imaging. 2009 Jul;31(3):183–200. doi: 10.1177/016173460903100304

TABLE 1.

Summary of nonconventional ARFI imaging methods used in this paper.

Method	Description	Intended benefit
*Previously implemented*
Parallel-receive²²	Simultaneously records echoes from multiple lateral locations.	Shortens acquisition time; reduces number of excitations.
Multiplexed imaging²¹	Multiplexes transmit/receive position through multiple nonadjacent lateral locations.	Shortens acquisition time while sacrificing tracking prf.
*Newly implemented*
Parallel-transmit excitation	Simultaneously transmits ARFI excitations at multiple nonadjacent lateral locations.	Alternative to multiplexing; allows for more uniform excitation across each lateral location.
Parallel-transmit tracking	Simultaneously transmits B-mode transmit pulses at multiple nonadjacent lateral locations	Alternative to multiplexing; does not significantly shorten acquisition time but preserves tracking prf.
Pre-excititation displacement estimation	Records multiple displacement estimates before the transmission of the radiation force pulse.	Improve motion filter performance.