1 Department of Electrical and Computer Engineering, Concordia University, Montreal, Québec, Canada.
2 School of Computer Science and Software Engineering, Southwest Petroleum University, Chengdu, China.
3 Department of Biomedical Engineering, Michigan Technological University, Houghton, Michigan, USA.

CONCLUSIONS: A novel ultrasonic displacement tracking algorithm named ALTRUIST has been developed. The principal novelty of ALTRUIST is incorporating ADMM for optimizing an L 1 $L1$ -norm regularization-based cost function. ALTRUIST exhibits promising performance in simulation, phantom, and in vivo experiments.