Title :
Portable, low-cost medical ultrasound device prototype
Author :
Fuller, Michael I. ; Ranganathan, Karthik ; Zhou, Shiwei ; Blalock, Travis N. ; Hossack, John A. ; Walker, William F.
Author_Institution :
Biomed. Eng. Dept., Virginia Univ., Charlottesville, VA, USA
Abstract :
The first generation prototype of a portable, low-cost medical ultrasound device is described along with experimental results. The prototype system consists of a fully sampled 2D transducer array, sixteen custom receive circuitry chips multiplexed into two bandpass filter channels, and an onboard programmable logic device. A PC fitted with a commercially available data acquisition card is used for data collection and analysis. Beamforming is performed using the direct-sampled in-phase/quadrature method. Pulse-echo images obtained with the prototype are presented and future work is discussed.
Keywords :
band-pass filters; biomedical ultrasonics; data acquisition; portable instruments; programmable logic devices; ultrasonic transducer arrays; custom receive circuitry chips; data acquisition; data analysis; data collection; direct-sampled in-phase/quadrature beamforming method; fully sampled 2D transducer array; low-cost medical ultrasound device; multiplexed bandpass filter channels; portable ultrasound device; programmable logic device; pulse-echo images; Band pass filters; Biomedical imaging; Biomedical transducers; Circuits; Data acquisition; Programmable logic arrays; Programmable logic devices; Prototypes; Ultrasonic imaging; Ultrasonic transducers;
Conference_Titel :
Ultrasonics Symposium, 2004 IEEE
Print_ISBN :
0-7803-8412-1
DOI :
10.1109/ULTSYM.2004.1417679
