Triangulation based vector flow imaging with non-steered plane waves for transverse flows

Madhavanunni A. N.; Mahesh Raveendranatha Panicker

doi:10.1117/12.2549253

16 March 2020 Triangulation based vector flow imaging with non-steered plane waves for transverse flows

Madhavanunni A. N., Mahesh Raveendranatha Panicker

Proceedings Volume 11319, Medical Imaging 2020: Ultrasonic Imaging and Tomography; 1131905 (2020) https://doi.org/10.1117/12.2549253
Event: SPIE Medical Imaging, 2020, Houston, Texas, United States

Abstract

Doppler ultrasound based methods are widely used in investigating the vascular hemodynamics and to quantize the blood flow dynamics. But conventional Doppler ultrasound techniques are limited to the investigation of axial flows as it is not sensitive to the transverse flow component. When it comes to non-invasive imaging of the human vasculature, as most of the blood vessels are parallel to the skin surface, the flow is transverse and hence conventional Doppler estimates are not reliable. To tackle this, various methods like cross beam Doppler, cross-correlation methods and multi-transmit multi-receive schemes have been developed in the recent past. Most of the strategies in this regard use plane waves which are electronically steered at different angles for insonification. In this work, the performance of a triangulation based algorithm with non-steered plane wave transmit is investigated for transverse flows. The algorithm makes a best fit out of the triangulation estimates with different receive angles so that the variability in vector estimation with the receive angles are reduced. The performance of the developed algorithm is evaluated with extensive simulations using Field II. The algorithm is tested with different flow profiles at different velocities and the estimates are shown to be promising and the accuracy is comparable with that of other vector flow imaging methods.

Conference Presentation

Citation Download Citation

Madhavanunni A. N. and Mahesh Raveendranatha Panicker "Triangulation based vector flow imaging with non-steered plane waves for transverse flows", Proc. SPIE 11319, Medical Imaging 2020: Ultrasonic Imaging and Tomography, 1131905 (16 March 2020); https://doi.org/10.1117/12.2549253

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