Title :
Experimental System Prototype of a Portable, Low-Cost, C-Scan Ultrasound Imaging Device
Author :
Fuller, Michael I. ; Ranganathan, Karthik ; Zhou, Shiwei ; Blalock, Travis N. ; Hossack, John A. ; Walker, William F.
Author_Institution :
PocketSonics, Inc., Charlottesville
Abstract :
A system prototype of a future compact, low-cost medical ultrasound device is described and presented with experimental results. The prototype system consists of a 32 x 32 element, fully sampled 2-D transducer array and a printed circuit board (PCB) containing 16 custom "front-end" receive channel integrated circuits (ICs) with analog multiplexing and programmable logic. A PC that included a commercially available data acquisition card is used for data collection and analysis. Beamforming is performed offline using the direct sampled in-phase/quadrature (DSIQ) algorithm. Pulse-echo images obtained with the prototype are presented. Results from this prototype support the feasibility of a low-cost, pocket-sized, C-scan imaging device.
Keywords :
application specific integrated circuits; biomedical transducers; biomedical ultrasonics; data acquisition; portable instruments; printed circuits; ultrasonic transducer arrays; C-scan medical ultrasound imaging device; PCB; application-specific integrated circuits; beamforming; biomedical acoustic imaging; data acquisition card; data analysis; data collection; direct sampled in-phase/quadrature algorithm; experimental system prototype; front-end receive channel integrated circuits; fully sampled 2-D transducer array; portable ultrasound; printed circuit board; pulse-echo images; Analog integrated circuits; Biomedical imaging; Biomedical transducers; Logic circuits; Logic devices; Printed circuits; Programmable logic arrays; Prototypes; Ultrasonic imaging; Ultrasonic transducers; Application-specific integrated circuits; C-scan; Portable ultrasound; application specific integrated circuits; biomedical acoustic imaging; portable ultrasound; Equipment Design; Equipment Failure Analysis; Image Interpretation, Computer-Assisted; Miniaturization; Pilot Projects; Reproducibility of Results; Sensitivity and Specificity; Signal Processing, Computer-Assisted; Ultrasonography; United States;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.2007.903517
