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Investigating Intrinsic Myocardial Mechanics - the role of MR tagging, velocity phase mapping and diffusion imaging

Shareem Masood, Guang-Zhong Yang, D.J. Pennell, D.N. Firmin

Journal Article
Journal of Magnetic Resonance Imaging
Volume 12
Issue 6
December, 2000

Assessment of myocardial mechanics is an integral part of understanding and predicting heart disease. This review covers the two most common magnetic resonance (MR) methods used to measure myocardial motion: myocardial tagging and myocardial velocity mapping. Myocardial tagging has been well established in clinical research, despite its time-consuming postprocessing procedure. Myocardial velocity mapping uses the phase shifts of the spins to encode the velocity into the MR signal. This means that once the myocardial contours have been segmented, the data can be automatically processed to obtain quantitative measurements. Diffusion MR also has found applications in cardiac imaging, with preliminary results of myocardial fiber architecture being obtained recently. These three different MR techniques have provided valuable insights into the assessment of intrinsic cardiac mechanics.

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