title: Experimental system prototype of a portable, low-cost, C-scan ultrasound imaging device.
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.
authors.affiliation: PocketSonics, Inc.,Charlottesville, VA 22901, USA. mfuller@pocketsonics.com
authors.forename: Michael I
authors.initials: MI
authors.lastname: Fuller
authors.forename: Karthik
authors.initials: K
authors.lastname: Ranganathan
authors.forename: Shiwei
authors.initials: S
authors.lastname: Zhou
authors.forename: Travis N
authors.initials: TN
authors.lastname: Blalock
authors.forename: John A
authors.initials: JA
authors.lastname: Hossack
authors.forename: William F
authors.initials: WF
authors.lastname: Walker
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation*; D008904:Miniaturization; D010865:Pilot Projects; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D014463:Ultrasonography / Q000191:economics / Q000295:instrumentation* / Q000379:methods; D014481:United States