Physiological corrections in functional magnetic resonance imaging
AssigneeRegents of the University of Minnesota
InventorsXiaoping Hu, Tuong Huu Le, Todd B. Parrish, Peter W. Erhard
Life of this patent
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Abstract
A functional magnetic resonance imaging method comprises the steps of: (a) detecting a physiological timing profile; (b) measuring cerebral k-space data to provide cerebral k-space data; (c) ordering the measured cerebral k-space data into a unit cycle based on the detected physiological timing profile; (d) estimating effects on individual k-space points resulting from physiological effects by non-linear least-square fitting to provide estimated physiological effects; and (e) removing the estimated physiological effects from the cerebral k-space data by substraction of the estimated physiological effects from said k-space data.
Claims10
A functional magnetic resonance imaging method comprising the steps of:
- (a) detecting a physiological timing profile;
- (b) measuring cerebral k-space data;
- (c) ordering the measured cerebral k-space data into a unit cycle based on the detected physiological timing profile;
- (d) estimating corresponding physiological effects for individual k-space data points by non-linear least-square fitting of cerebral k-space data;
- (e) removing the estimated physiological effects from the cerebral k-space data by subtraction, providing cerebral k-space data from which the estimated physical effects have been removed;
- and
- (f) providing an image from said cerebral k-space data from which the estimated physical effects have been removed.
A functional magnetic resonance imaging method of comprising the steps of:
- (a) detecting a physiological timing profile;
- (b) measuring cerebral k-space data to provide cerebral k-space data;
- (c) ordering the measured cerebral k-space data into a unit cycle based on the detected physiological timing profile;
- (d) estimating effects on individual k-space points resulting from physiological effects by non-linear fitting of cerebral k-space data to provide estimated physiological effects;
- (e) removing the estimated physiological effects from the cerebral k-space data by subtraction of the estimated physiological effects from said k-space data to form image data;
- and
- (f) forming an image from said image data.
Dependencies are inferred from the claim text.