Motion artifact minimization

Details Motion artifact minimization Motion artifact minimization

1990-02-01

1991-07-30

Smith, Ruth S.

Surgery

Truss

Pad

128721, 324309, A61B 5055

Patent

active

050352440

ABSTRACT:
A method for reducing respiratory motion caused artifacts in magnetic resonance imaging. The respiration cycle amplitude of the patient is divided into a plurality of intervals. Each interval is assigned a preferred encoding pulse. If the preferred encoding pulse has been used the next sequential (higher or lower) unused phase encoding pulse of a valve that is .+-.50% of the originally preferred phase encoding pulse is used.

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patent: 4730620 (1988-03-01), Bailes
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"Respiratory Ordered Phase Encoding (ROPE): A Method for Reducing Motion Artifacts in MR Imaging", by D. R. Bailes et al., pp. 835-838, Journal of Computer Assisted Tomography, vol. 9, (4) Jul./Aug. 1985.
Reducing Motion Artifacts in Two-Dimensional Fourier Transform Imaging; E. Mark Haacke and John L. Patrick; Magnetic Resonance Imaging, vol. 4, pp. 359-376, 1986.

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