Robust Microbubble Tracking for Super Resolution Imaging in Ultrasound

Publikation: Bidrag til bog/antologi/rapportKonferencebidrag i proceedingsForskningfagfællebedømt

kristoffer B Hansen, Carlos A Villagómez-Hoyos, Jens Christian Brasen, Konstantinos Diamantis, Vassilis Sboros, Charlotte Mehlin Sørensen, Jørgen Arendt Jensen

Currently ultrasound resolution is limited by diffraction
to approximately half the wavelength of the sound wave
employed. In recent years, super resolution imaging techniques
have overcome the diffraction limit through the localization and
tracking of a sparse set of microbubbles through the vasculature.
However, this has only been performed on fixated tissue, limiting
its clinical application. This paper proposes a technique
for making super resolution images on non-fixated tissue by
first compensating for tissue movement and then tracking the
individual microbubbles. The experiment is performed on the
kidney of a anesthetized Sprage-Dawley rat by infusing SonoVue
at 0.1 original concentration. The algorithm demonstrated in
vivo that the motion compensation was capable of removing
the movement caused by the mechanical ventilator. The results
shows that microbubbles were localized with a higher precision,
reducing the standard deviation of the super localizations from
22μm to 8 μm. The paper proves that the restriction of completely
fixated tissue can be eliminated, when making super resolution
imaging with microbubbles.
OriginalsprogEngelsk
Titel2016 IEEE International Ultrasonics Symposium
Antal sider4
ForlagIEEE
Publikationsdatosep. 2016
DOI
StatusUdgivet - sep. 2016
Begivenhed2016 IEEE International Ultrasonics Symposium -
Varighed: 18 sep. 201621 sep. 2016

Konference

Konference2016 IEEE International Ultrasonics Symposium
Periode18/09/201621/09/2016
NavnIEEE International Ultrasonics Symposium Proceedings

ID: 176889624