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Improved coverage in dynamic contrast‐enhanced cardiac MRI using interleaved gradient‐echo EPI
Author(s) -
Ding Shujun,
Wolff Steven D.,
Epstein Frederick H.
Publication year - 1998
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.1910390403
Subject(s) - gradient echo , heartbeat , contrast (vision) , temporal resolution , dynamic contrast enhanced mri , echo (communications protocol) , image contrast , echo planar imaging , computer science , nuclear magnetic resonance , biomedical engineering , magnetic resonance imaging , artificial intelligence , physics , medicine , radiology , optics , computer network , computer security
An interleaved gradient‐echo echo‐planar imaging (IGEPI) sequence was modified for and applied to dynamic contrast‐enhanced imaging of the heart. Using IGEPI, images with 3.0 × 3.9 mm nominal in‐plane resolution are acquired in 100 ms, enabling eight slices per heartbeat for a heart rate of 60 beats/min. The acquisition speed and use of saturation pre‐pulses allows acquisition of short‐ and long‐axis images during the same contrast bolus. IGEPI maintains the acquisition characteristics required for performing a quantitative first‐pass perfusion analysis as well as providing improved coverage compared with conventional fast gradient echo.

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