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

Nael Fakhry Osman, Smita Sampath, Ergin Atalar, Jerry Ladd Prince

Research output: Contribution to journalArticle

Abstract

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
Volume46
Issue number2
DOIs
StatePublished - 2001

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Diastole
Noise
Magnetic Resonance Imaging
Direction compound

Keywords

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

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Imaging longitudinal cardiac strain on short-axis images using strain-encoded MRI. / Osman, Nael Fakhry; Sampath, Smita; Atalar, Ergin; Prince, Jerry Ladd.

In: Magnetic Resonance in Medicine, Vol. 46, No. 2, 2001, p. 324-334.

Research output: Contribution to journalArticle

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