Non-invasive aberration correction and adaptive ultrasound imaging with a time reversal virtual array

Abstract Strong acoustical aberrations such as induced by multi-mode waveguides or the human skull can significantly reduce quality of prevent effective ultrasoundbased imaging. We propose a novel non-invasive calibration method that utilizes two independent accesses and time reversal virtual array (TRVA) for adaptive wavefront correction. Numerical characterization model experiment utilizing this show an improvement lateral resolution peak to background ratio up 35% 10% respectively.