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Published in:
2015 | OriginalPaper | Chapter
Factors Affecting Optical Flow Performance in Tagging Magnetic Resonance Imaging
Authors : Patricia Márquez-Valle, Hanne Kause, Andrea Fuster, Aura Hernàndez-Sabaté, Luc Florack, Debora Gil, Hans C. van Assen
Published in: Statistical Atlases and Computational Models of the Heart - Imaging and Modelling Challenges
Publisher: Springer International Publishing
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Changes in cardiac deformation patterns are correlated with cardiac pathologies. Deformation can be extracted from tagging Magnetic Resonance Imaging (tMRI) using Optical Flow (OF) techniques. For applications of OF in a clinical setting it is important to assess to what extent the performance of a particular OF method is stable across different clinical acquisition artifacts. This paper presents a statistical validation framework, based on ANOVA, to assess the motion and appearance factors that have the largest influence on OF accuracy drop. In order to validate this framework, we created a database of simulated tMRI data including the most common artifacts of MRI and test three different OF methods, including HARP.