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Generalized Analysis Framework for SPAMM, HARP and DENSE

Hettiwatte, S.N., Cowan, B.R. and Young, A.A. (2007) Generalized Analysis Framework for SPAMM, HARP and DENSE. In: Proceedings of the Society for Cardiovascular Magnetic Resonance 2007. Journal of Cardiovascular Magnetic Resonance, Vol. 9, No. 2, pp. 354-355

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A number of MR imaging techniques are used to measure deformation in the heart including SPAtial Modulation of Magnetization (SPAMM), HARmonic Phase (HARP) and Displacement ENcoding using Stimulated Echoes (DENSE). In SPAMM, a line or grid tag pattern is created magnetically in the tissue and displacement is measured from this reference by tracking the tags. In HARP, position information is encoded into the phase of a filtered image and this is used to calculate displacement. In DENSE, displacements are directly encoded into the phase of the image.

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