Magnetic resonance imaging method and device for monitoring moti

Details Magnetic resonance imaging method and device for monitoring moti Magnetic resonance imaging method and device for monitoring moti

1992-03-30

1994-01-04

Smith, Ruth S.

Surgery

Truss

Pad

128708, 324309, A61B 5055

Patent

active

052751635

ABSTRACT:
A magnetic resonance imaging method and device include a processor and a demodulator including a signal sampling device which provide automatic quantitative motion evaluation of a part of an object. Pulse and gradient sequences (tsq) are applied in pairs with spatially differing tagging patterns, images corresponding to the pairs being subtracted so as to form a tagged image. The motion is monitored by scanning of the tagging pattern in the tagged image which permits improved motion evaluation.

REFERENCES:
J. Frahm et al., "Rapid NMR Imaging Using Stimulated Echoes", Journal of Magnetic Resonance, vol. 65, (1985) pp. 130-135.
L. Axel et al., "MR Imaging of Motion with Spatial Modulation of Magnetization", Radiology 1989, vol. 171, No. 3, pp. 841-845.
E. McVeigh et al., "A Rapid Starburst Pulse Sequence for Cardiac Tagging", Book of Abstracts, SMRM 1989, Ansterdam, p. 23.
E. A. Zerhouni et al., "Human Heart: Tagging with MR Imaging--A Method of Non-invasive Assessment of Myocardial Motion", Radiology, Oct. 1988, pp. 59-63.

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