Key result
A new MRI tagging technique combining multiple measurements with different grid positions achieves highly improved resolution of cardiac motion data in two short breath-hold periods.
Why the study?
Does a new MRI tagging technique combining multiple measurements with different grid positions improve the resolution of cardiac motion data?
Does a new MRI tagging technique combining multiple measurements with different grid positions improve the resolution of cardiac motion data?
A novel MRI tagging technique combining multiple measurements with different grid positions significantly improves the spatial resolution of myocardial motion tracking.
Answers are grounded in this paper and cite their sources.
May enable higher-resolution motion tracking in routine scans; extends tagging methods but leaves open clinical validation.
Magnetic resonance imaging with preceding tissue tagging is a robust method for assessing cardiac motion of the entire heartbeat cycle with a high degree of accuracy. One limitation of this technique, however, is the low resolution of the obtained displacement map of the labeled points within the myocardium. By a new tagging technique, which is based on the combination of two or more measurements of the same slice but with different grid positions, a highly improved resolution of cardiac motion data can be achieved. In combination with a multi-heart-phase echo-planar imaging sequence, such images with doubled grid frequency can be acquired in two short breath-hold periods. Magn Reson Med 41:639–643, 1999.
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Stuber et al. (1999) studied Cardiac motion assessment. New MRI tagging technique was evaluated on Resolution of cardiac motion data. A new MRI tagging technique combining multiple measurements with different grid positions achieves highly improved resolution of cardiac motion data in two short breath-hold periods.
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