Low-cost, high-speed back-end processing system for high-frequency ultrasound B-mode imaging. IEEE transactions on ultrasonics, ferroelectrics, and frequency control [IEEE Trans Ultrason Ferroelectr Freq Control] Journal article | | Title | Low-cost, high-speed back-end processing system for high-frequency ultrasound B-mode imaging. | | Author(s) | Chang JH, Sun L, Yen JT, Shung KK | | Institution | National Institutes of Health Resource Center for Medical Ultrasonic Transducer Technology, Department of Biomedical Engineering, University of Southern California, Los Angeles. | | Source | IEEE Trans Ultrason Ferroelectr Freq Control 2009; 56(7):1490-1497. | | Abstract | For real-time visualization of the mouse heart (6 to 13 beats per second), a back-end processing system involving high-speed signal processing functions to form and display images has been developed. This back-end system was designed with new signal processing algorithms to achieve a frame rate of more than 400 images per second. These algorithms were implemented in a simple and cost-effective manner with a single field-programmable gate array (FPGA) and software programs written in C++. The operating speed of the back-end system was investigated by recording the time required for transferring an image to a personal computer. Experimental results showed that the back-end system is capable of producing 433 images per second. To evaluate the imaging performance of the back-end system, a complete imaging system was built. This imaging system, which consisted of a recently reported highspeed mechanical sector scanner assembled with the back-end system, was tested by imaging a wire phantom, a pig eye (in vitro), and a mouse heart (in invivo). It was shown that this system is capable of providing high spatial resolution images with fast temporal resolution. | | Language | ENG | | Pub Type(s) | JOURNAL ARTICLE
| | PubMed ID | 19574160 |
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