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Proceedings Paper

Detection of mechanical vibrations by magnetic resonance: elastomagnetic resonance spectroscopy (EMRS)
Author(s): C. J. Lewa; N. Baril; J. M. Franconi; J. D. de Certaines; Paul Canioni; Eric Thiaudiere
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Paper 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.

Paper Details

Date Published: 6 November 2001
PDF: 10 pages
Proc. SPIE 4514, Acousto-Optics and Applications IV, (6 November 2001); doi: 10.1117/12.447611
Show Author Affiliations
C. J. Lewa, Univ. of Gdansk (Poland)
N. Baril, Univ. Victor Segalen Bordeaux II (France)
J. M. Franconi, Univ. Victor Segalen Bordeaux II (France)
J. D. de Certaines, Univ. of Rennes I (France)
Paul Canioni, Univ. Victor Segalen Bordeaux II (France)
Eric Thiaudiere, Univ. Victor Segalen Bordeaux II (France)

Published in SPIE Proceedings Vol. 4514:
Acousto-Optics and Applications IV

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