TY - JOUR T1 - A flexible multichannel FPGA and PC-Based ultrasound system for medical imaging research: initial phantom experiments JO - Research on Biomedical Engineering A1 - Assef, Amauri Amorin A1 - Maia, Joaquim Miguel A1 - Costa, Eduardo Tavares SN - 2446-4740 UL - 10.1590/2446-4740.0700 VL - 31 Y1 - 2015 PB - Brazil ER -