I pursue ultrasonic beamforming and elasticity solutions to clinical problems. I am also interested in coupling signal processing advances with interesting ultrasound hardware realizations.
My current beamforming efforts focus on non-linear ultrasound beamforming strategies. I am developing methods for removing clutter induced by multipath and off-axis scattering from the typical signal of interest with minimal distortion. As part of this task, I am also studying approaches to quantify the effect of various mechanisms of in vivo image degradation on perceptions of ultrasound image quality. I am also developing Bayesian estimators for ultrasound displacement estimation. My lab is using these new estimators to pursue new approaches to non-invasively quantify tissue elasticity, especially for the liver. These elasticity approaches have the potential to enable more flexible and lower cost elasticity measurement tools.
Byram, B., Jakovljevic, M. (2014). Ultrasonic Multipath and Beamforming Clutter Reduction: A Chirp Model Approach. IEEE Trans. Ultrasonics Ferroelectrics and Frequency Control, 61, 428-440.
Byram, B., Han, K., van Assche, L. Wolf, P., Trahey, G. (2014). The Feasibility of Myocardial Infarct Visualization using Atrial Kick Induced Strain (AKIS) Contrast. Ultrasound in Medicine & Biology, 40, 1104-1117.
Wang, M., Byram, B., Palmeri, M., Rouze, N., Nightingale, K. (2013). Imaging Transverse Isotropic Properties of Muscle by Monitoring Acoustic Radiation Force Induced Shear Waves using a 2D Matrix Ultrasound Array. IEEE Trans. Medical Imaging, 32, 1671-1684.
Lediju, M., Trahey, G.E., Byram, B.C. & Dahl, J.J. (2011). Short-lag spatial coherence of backscattered echoes: imaging characteristics. IEEE Trans. Ultrasonics, Ferroelectrics, & Frequency Control, 58(7), 1377-1388.
Byram, B., Holley, G., Giannantonio D., & Trahey, G.E. (2010). 3-D Phantom and In Vivo Cardiac Speckle Tracking using a Matrix Array and Raw Echo Data. IEEE Trans. Ultrasonics, Ferroelectrics and Frequency Control, 57(4), 839-854.