METHOD FOR COMPENSATING FOR MOTION ARTIFACTS IN MAGNETIC RESONANCE IMAGING BY PHASE LINE PREDICTION

摘要

A method for compensation for object motion during a scan, especially an magnetic resonance imaging (MRI) scan is provided. The method involves takin g a first data set corresponding to a first focussed image and adding a number of data points to form a slightly higher resolution image. The first data se t is then used to predict what the next data points would be. The prediction c an be performed in k-space, image space or in a hybrid space. The predicted dat a points are then compared with the actual data points acquired as a means of determining any displacements. The displacements may be determined by comparing the phases of the actual and predicted data points and the k-space data corrected to compensate for any detected motion.