Methods for enhancing the robustness of the generalized contrast-to-noise ratio

S Schlunk, BC Byram - IEEE Transactions on Ultrasonics …, 2023 - ieeexplore.ieee.org
The generalized contrast-to-noise ratio (gCNR) is a new but increasingly popular metric for
measuring lesion detectability due to its use of probability distribution functions that increase …

Combining ADMIRE and MV to improve image quality

S Schlunk, B Byram - IEEE transactions on ultrasonics …, 2022 - ieeexplore.ieee.org
Aperture domain model image reconstruction (ADMIRE) is a frequency-domain, model-
based beamformer, in part designed for removing reverberation and off-axis clutter …

Spatiotemporal coherence to quantify sources of image degradation in ultrasonic imaging

EP Vienneau, KA Ozgun… - IEEE transactions on …, 2022 - ieeexplore.ieee.org
Thermal noise and acoustic clutter signals degrade ultrasonic image quality and contribute
to unreliable clinical assessment. When both noise and clutter are prevalent, it is difficult to …

Enhancing sizing accuracy in ultrasound images with an alternative ADMIRE model and dynamic range considerations

S Schlunk, R Hsi, B Byram - Ultrasonics, 2023 - Elsevier
Ultrasound imaging can struggle with sizing accuracy, especially when the targets have a
significantly different amplitude compared to the surrounding background. In this work, we …

Breaking and fixing gCNR and histogram matching

S Schlunk, B Byram - 2022 IEEE International Ultrasonics …, 2022 - ieeexplore.ieee.org
Generalized contrast-to-noise ratio (gCNR) and histogram matching are methods developed
to better measure the performance of modern adaptive beamformers. Both use histograms to …

An inverse method using Cross spectral Matrix Fitting for passive cavitation imaging

C Lachambre, A Basarab, JC Béra… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
High intensity focused ultrasound (HIFU) can produce cavitation, which requires monitoring
for specific applications such as sonoporation, targeted drug delivery or histotripsy. Passive …

Unfolding model-based beamforming for high quality ultrasound imaging

C Khan, RJG van Sloun, B Byram - ICASSP 2022-2022 IEEE …, 2022 - ieeexplore.ieee.org
Aperture Domain Model Image REconstruction (ADMIRE) is an advanced ultrasound
beamforming method that uses a model-based approach to suppress sources of acoustic …

Performing aperture domain model image reconstruction (ADMIRE) using a deep neural network sparse encoder

C Khan, RJG Van Sloun… - 2021 IEEE International …, 2021 - ieeexplore.ieee.org
Aperture Domain Model Image REconstruction (ADMIRE) is an advanced ultrasound
beamforming method that uses a model-based approach to suppress sources of acoustic …

Expanding gCNR into a clinically relevant measure of lesion detectability by considering size and spatial resolution

S Schlunk, B Byram - Medical Imaging 2024: Ultrasonic …, 2024 - spiedigitallibrary.org
Early image quality metrics were often designed with clinicians in mind, and ideally better
metrics would correlate with the subjective opinion of clinically better images. Over time …

Using ADMIRE to improve minimum variance performance in the presence of reverberation clutter

S Schlunk, B Byram - Medical Imaging 2021: Ultrasonic …, 2021 - spiedigitallibrary.org
Reverberation clutter is a difficult source of image degradation in patients, and minimum
variance (MV) in particular is poorly equipped to handle such sources, as we demonstrate …