Implementation of real-time duplex synthetic aperture ultrasonography

Martin Christian Hemmsen, Lee Larsen, Thomas Kjeldsen, Jesper Mosegaard, Jørgen Arendt Jensen

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This paper presents a real-time duplex synthetic aperture imaging system, implemented on a commercially available tablet. This includes real-time wireless reception of ultrasound signals and GPU processing for B-mode and Color Flow Imaging (CFM). The objective of the work is to investigate the implementation complexity and processing demands. The image processing is performed using the principle of Synthetic Aperture Sequential Beamforming (SASB) and the flow estimator is implemented using the cross-correlation estimator. Results are evaluated using a HTC Nexus 9 tablet and a BK Medical BK3000 ultrasound scanner emulating a wireless probe. The duplex imaging setup consists of interleaved B-mode and CFM frames. The required data throughput for real-time imaging is 36.1 MB/s. The measured data throughput peaked at 39.562 MB/s, covering the requirement for real-time data transfer and overhead in the TCP/IP protocol. Benchmarking of real-time imaging showed a total processing time of 25.7 ms (39 frames/s) which is less than the acquisition time (29.4 ms). In conclusion, the proposed implementation demonstrates that both B-mode and CFM can be executed in-time for real-time ultrasound imaging and that the required bandwidth between the probe and processing unit is within the current Wi-Fi standards.
Original languageEnglish
Title of host publicationProceedings of 2015 IEEE International Ultrasonics Symposium.
Number of pages4
Publication date2015
ISBN (Print)978-1-4799-8182-3
Publication statusPublished - 2015
Event2015 IEEE International Ultrasonics Symposium - Taipei, Taiwan, Province of China
Duration: 21 Oct 201524 Oct 2015


Conference2015 IEEE International Ultrasonics Symposium
Country/TerritoryTaiwan, Province of China


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