Key result
A fast and highly automated method for calculating two-dimensional myocardial motion using phase contrast MRI closely followed tag-lines and showed good potential for clinical practice.
Why the study?
Does a fast and highly automated method using phase contrast MRI accurately calculate two-dimensional myocardial motion and deformation compared to saturation grid-tagging and manual delineation?
Does a fast and highly automated method using phase contrast MRI accurately calculate two-dimensional myocardial motion and deformation compared to saturation grid-tagging and manual delineation?
A newly developed fast and highly automated method for myocardial motion analysis using phase contrast MRI shows good potential for clinical practice due to its speed and limited user interaction.
Cautions against immediate clinical use of automated phase-contrast MRI motion tracking; leaves open larger validation trials.
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.
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Bergvall et al. (2006) studied this question. Fast and highly automated method for calculating two-dimensional myocardial motion using phase contrast MRI vs. Saturation grid-tagging and manual delineation was evaluated on Validation of motion tracking and image segmentation. A fast and highly automated method for calculating two-dimensional myocardial motion using phase contrast MRI closely followed tag-lines and showed good potential for clinical practice.
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