The Separate Recovery of Spatial Fluctuations in Compressibility and Mass Density in Plane Wave Pulse-Echo Ultrasound Imaging

Martin Schiffner, Georg Schmitz

2013 IEEE Int. Ultrasonics Symp. (IUS), Prague, Jul. 2013, pp. 577--580, DOI: 10.1109/ULTSYM.2013.0149


Abstract

We investigated the separate recovery of spatial fluctuations in compressibility and mass density by plane wave pulse-echo ultrasound imaging based on sparse recovery (SR). Using simulated radio frequency (RF) data obtained from a sparse and a nonsparse object, we demonstrated that the recovery of space-resolved maps of both material parameters with small relative root mean-squared errors (RMSEs) was feasible. For a signal-to-noise ratio of 40 dB, the relative RMSEs were smaller than 4 %. For noiseless RF data, recovery was flawless. Using real RF data acquired from a human common carotid artery (in vivo), the presented concept yielded two space-resolved maps emphasizing different features of the object.

[DOI] [accepted paper] [bibtex]

Tags: Compressed Sensing, inverse scattering, plane wave excitation, radiation pattern, separation of material parameters