6 November 2001 Detection of mechanical vibrations by magnetic resonance: elastomagnetic resonance spectroscopy (EMRS)
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Proceedings Volume 4514, Acousto-Optics and Applications IV; (2001) https://doi.org/10.1117/12.447611
Event: Acousto-Optics and Applications IV, 2001, Gdansk-Jurata, Poland
Abstract
The previously tested MRI methods quantitative measurement of mechanical properties required a synchronization between MRI acquisition pulses and mechanical stimulation. Two new unsynchronized methods: (1) with Bo static field gradient Go and (2) with a B1 radio-frequency field gradient G1 are proposed. The methods are usable without any a- priori knowledge of the intensity, direction and frequency of the mechanical waves. A specifically modified SPAMM sequence has been used, operating on a 0.2 T MRI system. The proposed methods are sufficient fast (acquisition time less than 5 seconds) for a routine clinical use.
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C. J. Lewa, C. J. Lewa, N. Baril, N. Baril, J. M. Franconi, J. M. Franconi, J. D. de Certaines, J. D. de Certaines, Paul Canioni, Paul Canioni, Eric Thiaudiere, Eric Thiaudiere, "Detection of mechanical vibrations by magnetic resonance: elastomagnetic resonance spectroscopy (EMRS)", Proc. SPIE 4514, Acousto-Optics and Applications IV, (6 November 2001); doi: 10.1117/12.447611; https://doi.org/10.1117/12.447611
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