Model-free reconstruction of 3-D myocardial strain from planar tagged MR images: precision and spatial resolution

Thomas S. Denney, Elliot R. McVeigh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A technique is presented for reconstructing a three-dimensional myocardial strain map from a set of parallel-tagged magnetic resonance images. This technique was demonstrated on high resolution tagging data from an anesthetized dog. The strain was reconstructed with a precision of ±6.0% for a tag detection accuracy of 0.1mm and a tag spacing of 2.5mm. The reconstruction spatial resolution was demonstrated by reconstructing a displacement field in response to a displaced cloud of tag points. In the circumferential direction, the cloud that resulted in a 50% displacement attenuation had a full width at half maximum (FWHM) of 5.4mm±0.4mm (mean ± standard deviation). The FWHM of the strain field reconstructed from a single in plane displaced tag point was 5.2mm±0.3mm. CONCLUSION: The combination of high-resolution parallel-tagged MR images and the model-free, coordinate system-free strain reconstruction technique presented in this paper is capable of producing accurate, high-resolution strain maps of the myocardium.

Original languageEnglish (US)
Title of host publicationSouthern Biomedical Engineering Conference - Proceedings
EditorsJ.D. Bumgardner, A.D. Puckett
PublisherIEEE
Pages246-249
Number of pages4
Publication statusPublished - 1997
Externally publishedYes
EventProceedings of the 1997 16th Southern Biomedical Engineering Conference - Biloxi, MS, USA
Duration: Apr 4 1997Apr 6 1997

Other

OtherProceedings of the 1997 16th Southern Biomedical Engineering Conference
CityBiloxi, MS, USA
Period4/4/974/6/97

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Denney, T. S., & McVeigh, E. R. (1997). Model-free reconstruction of 3-D myocardial strain from planar tagged MR images: precision and spatial resolution. In J. D. Bumgardner, & A. D. Puckett (Eds.), Southern Biomedical Engineering Conference - Proceedings (pp. 246-249). IEEE.