Imaging longitudinal cardiac strain on short‐axis images using strain‐encoded MRI | Zendy

Osman Nael F. | Zendy; Sampath Smita | Zendy; Atalar Ergin | Zendy; Prince Jerry L. | Zendy

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Imaging longitudinal cardiac strain on short‐axis images using strain‐encoded MRI

Author(s) -

Osman Nael F.,

Sampath Smita,

Atalar Ergin,

Prince Jerry L.

Publication year - 2001

Publication title -

magnetic resonance in medicine

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.696

H-Index - 225

eISSN - 1522-2594

pISSN - 0740-3194

DOI - 10.1002/mrm.1195

Subject(s) - harp , magnetic resonance imaging , strain (injury) , physics , phase (matter) , plane (geometry) , nuclear magnetic resonance , encoding (memory) , transverse plane , computer science , artificial intelligence , mathematics , anatomy , medicine , geometry , radiology , quantum mechanics

This article presents a new method for measuring longitudinal strain in a short‐axis section of the heart using harmonic phase magnetic resonance imaging (HARP‐MRI). The heart is tagged using 1‐1 SPAMM at end‐diastole with tag surfaces parallel to a short‐axis imaging plane. Two or more images are acquired such that the images have different phase encodings in a direction orthogonal to the image plane. A dense map of the longitudinal strain can be computed from these images using a simple, fast computation. Simulations are conducted to study the effect of noise and the choice of out‐of‐plane phase encoding values. Longitudinal strains acquired from a normal human male are shown. Magn Reson Med 46:324‐334, 20001. © 2001 Wiley‐Liss, Inc.

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