Characterization of velocity patterns produced by pulsatile and constant flows using 1000 fps high-speed angiography (HSA)

A. Shields; S. V. Setlur Nagesh; C. Ionita; D. R. Bednarek; S. Rudin

doi:10.1117/12.2580888

15 February 2021 Characterization of velocity patterns produced by pulsatile and constant flows using 1000 fps high-speed angiography (HSA)

A. Shields, S. V. Setlur Nagesh, C. Ionita, D. R. Bednarek, S. Rudin

Author Affiliations +

Proceedings Volume 11600, Medical Imaging 2021: Biomedical Applications in Molecular, Structural, and Functional Imaging; 116001G (2021) https://doi.org/10.1117/12.2580888
Event: SPIE Medical Imaging, 2021, Online Only

Abstract

Two quantitative methods were used to determine high-temporal resolution velocity changes throughout HSA image sequences, one based on movements of discrete radiopaque microspheres and the other on iodinated contrast injections. The chosen pump settings encompassed a wide range of flow situations, all of which produced unique velocity measurements over the flow duration as captured by the detector. Variations in velocity are illustrated due to both the cyclic action of the pump and various phantom morphologies. These HSA methods can be applied to derive a wide range of velocity distributions, which may be used to further quantify important hemodynamic parameters.

Conference Presentation

Citation Download Citation

A. Shields, S. V. Setlur Nagesh, C. Ionita, D. R. Bednarek, and S. Rudin "Characterization of velocity patterns produced by pulsatile and constant flows using 1000 fps high-speed angiography (HSA)", Proc. SPIE 11600, Medical Imaging 2021: Biomedical Applications in Molecular, Structural, and Functional Imaging, 116001G (15 February 2021); https://doi.org/10.1117/12.2580888

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