Real-Time Ultrasound Elastography on a Multi-core DSP
نویسندگان
چکیده
Ultrasound (US) elastography measures the deformation of tissue in response to applied force to derive and display its stiffness. It has been applied to various organs and tissues, e.g., as an adjunct tool to conventional US and X-ray mammography in the detection and characterization of breast masses. Real-time US elastography processing is demanding due to several computationally-expensive modules, such as crosscorrelation. Multi-core digital signal processors (DSPs) provide increased computational performance with less power consumption and lower cost than other programmable approaches, e.g., with general-purpose CPUs and GPUs. However, optimal algorithm implementations on multi-core processors require careful algorithm/architecture analysis and prudent mapping to achieve good performance. In this paper, we present our approach and techniques used in mapping our US elastography algorithm on a multi-core DSP, i.e., Texas Instruments TMS320C6472. Our results show that a single C6472 multi-core DSP can support real-time US elastography processing.
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