[Zhou, Qifa; Chen, Zeyu; Qian, Xuejun; Chen, ZY] Univ Southern Calif, Keck Sch Med, Los Angeles, CA 90033 USA.
[Shung, K. Kirk; Zhou, Qifa; Qian, Xuejun] Univ Southern Calif, Dept Biomed Engn, Los Angeles, CA 90089 USA.
[Shung, K. Kirk; Zhou, Qifa; Qian, Xuejun] Univ Southern Calif, NIH Resource Ctr Med Ultrason Transducer Technol, Los Angeles, CA 90089 USA.
[Zhang, Bo] Cent South Univ, Xiangya Hosp, Ultrasound Imaging Dept, Changsha 410083, Hunan, Peoples R China.
[Liu, Shaoqiang] Cent South Univ, Sch Informat Sci & Engn, Changsha 410083, Hunan, Peoples R China.