Feasibility of endocardial edge detection by using an inversion recovery artifact | Zendy

Laffon Eric | Zendy; Cassen Christelle | Zendy; Latrabe Valérie | Zendy; Montaudon Michel | Zendy; Laurent François | Zendy; Massot Philippe | Zendy; Ducassou Dominique | Zendy; Barat JeanLouis | Zendy

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Feasibility of endocardial edge detection by using an inversion recovery artifact

Author(s) -

Laffon Eric,

Cassen Christelle,

Latrabe Valérie,

Montaudon Michel,

Laurent François,

Massot Philippe,

Ducassou Dominique,

Barat JeanLouis

Publication year - 2001

Publication title -

journal of magnetic resonance imaging

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.563

H-Index - 160

eISSN - 1522-2586

pISSN - 1053-1807

DOI - 10.1002/jmri.1067

Subject(s) - snapshot (computer storage) , artifact (error) , ejection fraction , pixel , computer science , nuclear magnetic resonance , artificial intelligence , computer vision , nuclear medicine , physics , medicine , cardiology , heart failure , operating system

An inversion recovery (IR) artifact was used to delineate the blood/wall boundary in left ventricles. The artifact consisted of a hypointensity signal in pixels located at the boundary of two contiguous tissues with different T 1 relaxation times. The feasibility of measuring the ejection fraction using the artifact was tested in ten healthy volunteers, with two IR snapshot‐FLASH sequences possessing different times of repetition (TR = 11msec and TR = 3.5msec) and appropriate times of inversion. The comparison with a cine‐MRI sequence showed that ejection fraction measurements are feasible when performed with a snapshot‐FLASH sequence that has a sufficiently short TR (3.5msec). J. Magn. Reson. Imaging 2001;13:461–466. © 2001 Wiley‐Liss, Inc.

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