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PubMed · 10204886

Segmented k-space fast cardiac imaging using an echo-train readout.

F H Epstein·S D Wolff·A E Arai
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Abstract

A segmented k-space fast gradient-echo pulse sequence with an echo-train readout (FGRE-ET) was developed for high-quality cine imaging of the heart in reduced scan times. Using segmented FGRE-ET, cine images of the heart can be acquired in as few as 1-5 heart beats and do not display the geometric distortion and flow-related artifacts typically associated with cardiac echoplanar imaging (EPI). Segmented FGRE-ET was compared with conventional segmented FGRE and with conventional multi-phase EPI in normal volunteers. Segmented FGRE-ET was found to have reduced temporal blurring compared with segmented FGRE for cine imaging in 4 heart beats (P<0.05). Also, segmented FGRE-ET did not display geometric distortion characteristic of conventional EPI (P<0.05). Segmented FGRE-ET may be particularly applicable to functional cardiac stress testing because it allows versatile cine imaging in very short breath-holds.

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Analysis of VarianceArtifactsEcho-Planar ImagingHeartHumansImage EnhancementMagnetic Resonance Imaging, CineReference ValuesSensitivity and SpecificityClinical TrialComparative StudyJournal ArticleResearch Support, Non-U.S. Gov't

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BibTeXRIS

F H Epstein, S D Wolff, A E Arai. 1999. Segmented k-space fast cardiac imaging using an echo-train readout.. https://doi.org/10.1002/(sici)1522-2594(199903)41%3A3%3C609%3A%3Aaid-mrm25%3E3.0.co%3B2-2

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