RF-ULM: Ultrasound Localization Microscopy Learned from Radio-Frequency Wavefronts

arXiv:2310.01545v3 Announce Type: replace-cross
Abstract: In Ultrasound Localization Microscopy (ULM), achieving high-resolution images relies on the precise localization of contrast agent particles across a series of beamformed frames. However, our study uncovers an enormous potential: The process of delay-and-sum beamforming leads to an irreversible reduction of Radio-Frequency (RF) channel data, while its implications for localization remain largely unexplored. The rich contextual information embedded within RF wavefronts, including their hyperbolic shape and phase, offers great promise for guiding Deep Neural Networks …

arxiv cs.cg cs.cv localization microscopy physics.med-ph radio type