Real-Time, Simultaneous DAS, ADMIRE, and SLSC Imaging Using GPU-Based Processing

Aperture Domain Model Image REconstruction (ADMIRE) is an adaptive imaging method that has been shown to reduce sources of ultrasound image degradation that include both off-axis scattering and multipath scattering. It does so by performing a model-based fit of the aperture domain data in order to reconstruct the data by only using model predictors that are within a specified region-of-interest. By doing so, model predictors that contribute to sources of acoustic clutter can be removed. Although ADMIRE can reduce sources of clutter, one of its drawbacks is its significant computational requirements. We have been working on improving the computational speed of ADMIRE through the use of parallel processing on GPUs, but we have yet to demonstrate real-time imaging with it. Therefore, in this work, we have interfaced our GPU-based implementation of ADMIRE with a Verasonics Vantage 128 ultrasound research system in order to perform real-time imaging. Moreover, we show how other methods including delay-and-sum (DAS) and short-lag spatial coherence (SLSC) can also be computed and simultaneously displayed with ADMIRE.