Direct calculation of 2D components of myocardial strain using sinusoidal MR tagging

Nael F. Osman; Jerry L. Prince

doi:10.1117/12.312558

3 July 1998 Direct calculation of 2D components of myocardial strain using sinusoidal MR tagging

Nael F. Osman, Jerry L. Prince

Proceedings Volume 3337, Medical Imaging 1998: Physiology and Function from Multidimensional Images; (1998) https://doi.org/10.1117/12.312558
Event: Medical Imaging '98, 1998, San Diego, CA, United States

Abstract

A new technique to measure local planar strain in left ventricular myocardium using two-dimensional tagged MR images is presented. This new technique is computationally fast, is fully automated, and generates dense motion estimates. It is based on using a 1-1 SPAMM tag pattern which comprise several one-dimensional sinusoidal tag patterns at different frequencies. A local deformation of the myocardium produces a variation in the local frequencies of these patterns, which can be used to compute strain components in the image plane. Local frequency is measured by scanning certain spectral peaks to create complex images, for which the local frequency is the gradient of the angle associated with their complex data points. The method is demonstrated using both simulations and real tagged MR images, and a discussion of these results and of directions for future research is provided.

Citation Download Citation

Nael F. Osman and Jerry L. Prince "Direct calculation of 2D components of myocardial strain using sinusoidal MR tagging", Proc. SPIE 3337, Medical Imaging 1998: Physiology and Function from Multidimensional Images, (3 July 1998); https://doi.org/10.1117/12.312558

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