Tracking Performance in Ultrasound Super-Resolution Imaging

Iman Taghavi, Sofie Bech Andersen, Carlos A. Villagomez Hoyos, Mikkel Schou, Sigrid Husebø Øygard, Fredrik Gran, Kristoffer L. Hansen, Charlotte M. Sørensen, Michael Bachmann Nielsen, Matthias Bo Stuart, Jørgen Arendt Jensen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

42 Downloads (Pure)

Abstract

Tracking plays an important role in super-resolution (SR) ultrasound imaging, as it improves the quality and sharpness of the final SR images. Moreover, tracking enables quantification of clinically important parameters, such as blood flow velocity. However, the tracking performance degrades in the presence of complex particle patterns and localization uncertainty due to noise and motion. This work presents and discusses multiple approaches for tracking evaluation and compares a nearestneighbor (NN) with a Kalman tracker through simulations and an in vivo experiment. It is shown that in the presence of a localization uncertainty with a standard deviation (SD) of λ/5, the bias and SD of the velocity estimates reach -1.04 ± 0.9 mm/s and -0.12 ± 0.72 mm/s in the NN and Kalman tracker, respectively (relative to the peak velocity of 10 mm/s). The precision of individual track positions is estimated for an in vivo experiment as 37.95 ± 21.37 µm and 23.9 ± 11.82 µm for the NN and Kalman trackers, respectively. The results indicate that the
Kalman tracker achieves a better velocity estimation and reduces localization uncertainty.
Original languageEnglish
Title of host publicationProceedings of 2020’s IEEE International Ultrasonics Symposium
Number of pages4
PublisherIEEE
Publication statusAccepted/In press - 2020
Event2020’s IEEE International Ultrasonics Symposium - Virtual symposium, Las Vegas, United States
Duration: 6 Sep 202011 Sep 2020
https://2020.ieee-ius.org/

Conference

Conference2020’s IEEE International Ultrasonics Symposium
LocationVirtual symposium
CountryUnited States
CityLas Vegas
Period06/09/202011/09/2020
Internet address

Cite this

Taghavi, I., Andersen, S. B., Hoyos, C. A. V., Schou, M., Øygard, S. H., Gran, F., Hansen, K. L., Sørensen, C. M., Bachmann Nielsen, M., Stuart, M. B., & Jensen, J. A. (Accepted/In press). Tracking Performance in Ultrasound Super-Resolution Imaging. In Proceedings of 2020’s IEEE International Ultrasonics Symposium IEEE.