title: A single FPGA-based portable ultrasound imaging system for point-of-care applications.
abstract: We present a cost-effective portable ultrasound system based on a single field-programmable gate array (FPGA) for point-of-care applications. In the portable ultrasound system developed, all the ultrasound signal and image processing modules, including an effective 32-channel receive beamformer with pseudo-dynamic focusing, are embedded in an FPGA chip. For overall system control, a mobile processor running Linux at 667 MHz is used. The scan-converted ultrasound image data from the FPGA are directly transferred to the system controller via external direct memory access without a video processing unit. The potable ultrasound system developed can provide real-time B-mode imaging with a maximum frame rate of 30, and it has a battery life of approximately 1.5 h. These results indicate that the single FPGA-based portable ultrasound system developed is able to meet the processing requirements in medical ultrasound imaging while providing improved flexibility for adapting to emerging POC applications.
authors: Department of Electronic Engineering, Sogang University, Seoul, Korea.
authors: Gi-Duck
authors: GD
authors: Kim
authors: Changhan
authors: C
authors: Yoon
authors: Sang-Bum
authors: SB
authors: Kye
authors: Youngbae
authors: Y
authors: Lee
authors: Jeeun
authors: J
authors: Kang
authors: Yangmo
authors: Y
authors: Yoo
authors: Tai-kyong
authors: TK
authors: Song
mesh_terms: D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation*; D016247:Information Storage and Retrieval / Q000379:methods*; D008904:Miniaturization; D019095:Point-of-Care Systems; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D014463:Ultrasonography / Q000295:instrumentation*