Comparison of the extent of dielayed-enhancement cardiac magnetic resonance imaging with and without phase-sensitive reconstruction at 3.0 T - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Investigative Radiology Année : 2007

Comparison of the extent of dielayed-enhancement cardiac magnetic resonance imaging with and without phase-sensitive reconstruction at 3.0 T

Résumé

Abstract: Objectives: To evaluate phase-sensitive reconstructed images versus magnitude images generated by an inversion recovery pulse sequence for the determination of myocardial infarct size in delayed-enhancement cardiac magnetic resonance (DE-CMR) at 3 T. Materials and Methods: Thirty patients were examined at 3 T and DE images were obtained 10 minutes after contrast agent administration using a phase-sensitive breath-hold segmented inversion recovery gradient echo sequence. From magnitude and phase images, the percentage of hyperenhanced myocardium was expressed. Contrast-to-noise ratio (CNR) measurements were performed in hyperenhanced and normal myocardium. Results: We observed excellent correlation and concordance between hyperenhanced myocardium determined on phase-sensitive reconstructed and magnitude images. The mean CNR values were significantly higher in phase-sensitive reconstructed images compared with magnitude images (10.5 +/- 5.4 vs. 6.1 +/- 4.8; P < 0.001). Conclusions: DE-CMR with phase-sensitive reconstruction at 3.0 T provides similar results to magnitude images, but with a significantly greater CNR between infarcted and normal myocardium.

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hal-00787758 , version 1 (12-02-2013)

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Alexandre Cochet, Alain Lalande, Paul Walker, Christophe Boichot, Renaud Ciappuccini, et al.. Comparison of the extent of dielayed-enhancement cardiac magnetic resonance imaging with and without phase-sensitive reconstruction at 3.0 T. Investigative Radiology, 2007, 42 (6), pp.372-376. ⟨10.1097/01.rli.0000263184.19773.aa⟩. ⟨hal-00787758⟩
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