@CONFERENCE\{IMM2003-01255, author = "M. B. Stegmann and H. B. W. Larsson", title = "Motion-compensation of Cardiac Perfusion {MRI} using a Statistical Texture Ensemble", year = "2003", month = "jun", keywords = "segmentation, myocardial perfusion imaging, active appearance models, clustering", pages = "151-161", booktitle = "Functional Imaging and Modeling of the Heart, {FIMH} 2003", volume = "2674", series = "Lecture Notes in Computer Science", editor = "Magnin, I. E., Montagnat, J., Clarysse, P., Nenonen, J., Katila, T.", publisher = "Springer Verlag", organization = "", address = "Lyon, France", url = "http://www2.compute.dtu.dk/pubdb/pubs/1255-full.html", abstract = "This paper presents a novel method for segmentation of cardiac perfusion {MRI}. By performing complex analyses of variance and clustering in an annotated training set off-line, the presented method provide real-time segmentation in an on-line setting. This renders the method feasible for e.g. analysis of large image databases or for live motion-compensation in modern {MR} scanners. Changes in image intensity during the bolus passage is modelled by an Active Appearance Model is augmented with a cluster analysis of the training set and priors on pose and shape. Preliminary validation of the method is carried out using 250 {MR} perfusion images, acquired without breath-hold from five subjects. Results show high accuracy, given the limited number of subjects." }