Sequential CPWC: from ultrafast to ultralight

Alfonso Rodriguez-Molares; Hans Torp; Boris Lippe; Lasse Løvstakken

doi:10.1117/12.2255038

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13 March 2017 Sequential CPWC: from ultrafast to ultralight

Alfonso Rodriguez-Molares; Hans Torp; Boris Lippe; Lasse Løvstakken

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Proceedings Volume 10139, Medical Imaging 2017: Ultrasonic Imaging and Tomography; 1013913 (2017) https://doi.org/10.1117/12.2255038
Event: SPIE Medical Imaging, 2017, Orlando, Florida, United States

Abstract

Based on coherent plane-wave compounding (CPWC) and synthetic aperture sequential beamforming (SASB) we propose a two stage CPWC beamformer able to reduce the number of channels between probe and the scanner by a factor of 4 without a significant loss in image quality. Further reduction, of up to a factor of 18, is possible at the cost of a drop in contrast ratio of 2.3 dB, but lateral resolution remains almost unchanged. The propose method may be significantly simpler to implement in the probe than SASB, but it may also increase thermal noise significantly.

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Alfonso Rodriguez-Molares, Hans Torp, Boris Lippe, and Lasse Løvstakken "Sequential CPWC: from ultrafast to ultralight", Proc. SPIE 10139, Medical Imaging 2017: Ultrasonic Imaging and Tomography, 1013913 (13 March 2017); https://doi.org/10.1117/12.2255038

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