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Fast, three-dimensional free-breathing MR imaging of myocardial infarction: A feasibility study

Saranathan, M and Rochitte, CE and Foo, TKF (2004) Fast, three-dimensional free-breathing MR imaging of myocardial infarction: A feasibility study. In: Magnetic Resonance in Medicine , 51 (5). pp. 1055-1060.

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Official URL: http://www3.interscience.wiley.com/journal/1085613...

Abstract

Imaging delayed hyperenhancement of myocardial infarction is most commonly performed using an inversion recovery (IR) prepared 2D breathhold segmented k-space gradient echo (FGRE) sequence. Since only one slice is acquired per breathhold in this technique, 12-16 successive breathholds are required for complete anatomical coverage of the heart. This prolongs the overall scan time and may be exhausting for patients. A navigator-echo gated, free-breathing, 3D FGRE sequence is proposed that can be used to acquire a single slab covering the entire heart with high spatial resolution. The use of a new variable sampling in time (VAST) acquisition scheme enables the entire 3D volume to be acquired in 1.5-2 min, minimizing artifacts from bulk motion and diaphragmatic drift and contrast variations due to contrast media washout.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to John Wiley and Sons.
Keywords: Contrast enhancement;Time.
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 01 May 2009 06:55
Last Modified: 01 May 2009 06:55
URI: http://eprints.iisc.ernet.in/id/eprint/16936

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