A fast and highly automated approach to myocardial motion analysis using phase contrast magnetic resonance imaging
Erik Bergvall1, Peter Cain, Håkan Arheden
1Centre for Mathematical Sciences, Lund Institute of Technology, Lund, Sweden. erik.bergvall@med.lu.se
Purpose:
To develop a fast and highly automated method for calculating two-dimensional myocardial motion and deformation using velocity encoded magnetic resonance imaging.
Materials And Methods:
Two-dimensional phase contrast magnetic resonance imaging was used to acquire time resolved velocity maps of the myocardium. Cardiac motion was calculated by an iterative integration-regularization scheme of low computational cost. Image segmentation was performed using active appearance models.
Results:
Validation of motion tracking was performed in N = 47 subjects using saturation grid-tagging and closely followed "tag-lines." Image segmentation was validated vs. manual delineation.
Conclusion:
The speed and limited user interaction gives the method good potential for use in clinical practice.
