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Shear Wave Imaging (SWI) is an ultrasound based technique for elasticity imaging that has been successfully tested on several organs in the framework of cancer diagnosis. In this work, the potential of this technique to map brain elasticity in vivo on trepanned small animals is investigated. From a SWI scan of the rat brain, 3D elasticity maps are reconstructed reaching a spatial resolution of 800...
This work applies the concept of compounded plane wave transmissions at very high frames rates of some KHz for ultrafast Doppler analysis over a large region of interest. As this compound imaging method has a similar quality to the standard focusing method but is 10 times faster, it is possible to generate fast Doppler images at frame rates of 300Hz. This frame rate is able to visualize transient...
The concept of shear wave elastography is applied to the heart. The goal of this study is to demonstrate the potential of this technique for quantifying the elasticity time variation of the myocardium. Experiments are performed in vivo on N=10 sheep with a linear high frequency probe placed directly on the myocardium. The feasibility of generating and imaging the propagation of shear wave in the beating...
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