Two motion-detection algorithms for projection–reconstruction magnetic resonance imaging: theory and experimental verification

R. Van de Walle, I. Lemahieu, E. Achten
1998 Computerized Medical Imaging and Graphics  
In this paper, projection-reconstruction (PR) magnetic resonance (MR) imaging is considered, We present two new quantitative techniques that allow to check when motion was present during a PP~ MR experiment. No a priori information about the motion is required since only the measured MR signals are used in the calculations. Moreover, the proposed methods can be implemented on a standard personal computer or workstation. It is experimentally shown that both methods are able to detect motion intervals with an accuracy of one repetition time.
doi:10.1016/s0895-6111(98)00013-5 pmid:9719852 fatcat:pqhy2b3jrzccvohqrf4spa5b2a