Myocardial tagging in polar coordinates with use of striped tags

Bradley D. Bolster, Elliot R. McVeigh, Elias Zerhouni

Research output: Contribution to journalArticle

Abstract

Regional deformation abnormalities in the heart wall provide a good indicator of ischemia. Myocardial tagging with magnetic resonance imaging is a new method of assessing heart wall motion during contraction. Current methods of myocardial tagging either do not provide two-dimensional information or lack a coordinate system well adapted to the morphology of the heart. In this article, the authors describe a new tagging method that provides a true polar coordinate system, with both radial and angular dimensions. This is accomplished with use of a section-selective version of spatially modulated magnetization resulting in striped tags (STAGs). These STAG planes are placed in the myocardium in a star pattern so that they intersect on the long axis of the heart and stripes appear through the width of the heart wall. In the short-axis view during contraction, rotation around the long axis yields angular information such as shear and twist, while separation of the stripes within the myocardium permits measurement of radial thickening. Therefore, this method provides a coordinate system for calculating two-dimensional strain that is adapted to the morphology of the left ventricle.

Original languageEnglish (US)
Pages (from-to)769-772
Number of pages4
JournalRadiology
Volume177
Issue number3
StatePublished - Dec 1990

Fingerprint

Myocardium
Congenital Heart Defects
Heart Ventricles
Ischemia
Magnetic Resonance Imaging

Keywords

  • Heart, function
  • Magnetic resonance (MR), physics
  • Magnetic resonance (MR), technology
  • Myocardium, MR studies, 511.1214

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology

Cite this

Bolster, B. D., McVeigh, E. R., & Zerhouni, E. (1990). Myocardial tagging in polar coordinates with use of striped tags. Radiology, 177(3), 769-772.

Myocardial tagging in polar coordinates with use of striped tags. / Bolster, Bradley D.; McVeigh, Elliot R.; Zerhouni, Elias.

In: Radiology, Vol. 177, No. 3, 12.1990, p. 769-772.

Research output: Contribution to journalArticle

Bolster, BD, McVeigh, ER & Zerhouni, E 1990, 'Myocardial tagging in polar coordinates with use of striped tags', Radiology, vol. 177, no. 3, pp. 769-772.
Bolster, Bradley D. ; McVeigh, Elliot R. ; Zerhouni, Elias. / Myocardial tagging in polar coordinates with use of striped tags. In: Radiology. 1990 ; Vol. 177, No. 3. pp. 769-772.
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