Acceleration-Based Kalman Tracking for Super-Resolution Ultrasound Imaging In Vivo.

ABSTRACT: Super-resolution ultrasound (SRUS) can image microvascular structure and flow at subwave-diffraction resolution based on localizing and tracking microbubbles (MBs). Currently, tracking MBs accurately under limited imaging frame rates and high MB concentrations remains a challenge, especially under the effect of cardiac pulsatility and in highly curved vessels. In this study, an acceleration-incorporated MB motion model is introduced into a Kalman tracking framework. The tracking performance was evaluated using simulated microvasculature with different MB motion parameters, concentrations, and acquisition frame rates, and in vivo human breast tumor US datasets. The simulation results show that the acceleration-based method outperformed the nonacceleration-based method at different levels of

SUBMITTER: Huang B 

PROVIDER: S-EPMC7615377 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature