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

Nael F. Osman, Smita Sampath, Ergin Atalar, Jerry L. Prince

Research output: Contribution to journalArticlepeer-review

183 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)324-334
Number of pages11
JournalMagnetic resonance in medicine
Issue number2
StatePublished - 2001


  • Cardiac motion
  • Harmonic phase
  • Magnetic resonance tagging
  • Myocardial strain

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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