Key result
A transcranial magnetic stimulation device combined with a permanent magnet successfully induced shear waves of 5 and 0.5 micrometers in a cryogel phantom and chicken breast sample, respectively.
This study demonstrates the first observation of remotely induced shear waves in soft tissues using a TMS device and a permanent magnet, establishing a framework for alternative shear wave elastography.
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No immediate clinical role for remote shear wave induction; leaves open its translation to noninvasive elastography.
This study presents the first observation of shear waves induced remotely within soft tissues. It was performed through the combination of a transcranial magnetic stimulation device and a permanent magnet. A physical model based on Maxwell and Navier equations was developed. Experiments were performed on a cryogel phantom and a chicken breast sample. Using an ultrafast ultrasound scanner, shear waves of respective amplitudes of 5 and 0.5 μm were observed. Experimental and numerical results were in good agreement. This study constitutes the framework of an alternative shear wave elastography method.
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A 2016 study studied this question. Transcranial magnetic stimulation (TMS) device combined with a permanent magnet was evaluated on Amplitude of induced shear waves. A transcranial magnetic stimulation device combined with a permanent magnet successfully induced shear waves of 5 and 0.5 micrometers in a cryogel phantom and chicken breast sample, respectively.
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