Work

Optimization of fast cardiac imaging using an echo-train readout

Year: 2000

Type: article

Abstract: Fast gradient-echo sequences that use an echo-train readout are becoming more widely used, particularly for imaging the heart. An important issue for these sequences involves determining the optimal duration for the echo-train readout. In normal volunteer scans and theoretically the echo-train readout duration was varied from 2.4 to 32.8 msec. Myocardial signal-to-noise ratio (SNR), myocardium-tag signal difference-to-noise ratio (SDNR), flow artifact-to-noise ratio (FNR), and geometric distortion were measured and/or calculated. Our results showed that to obtain high SNR, SDNR, and data acquisition efficiency while minimizing FNR and geometric distortion, the readout duration should be 10-15 msec at 1.5 T.

Source: Journal of Magnetic Resonance Imaging

DOI: 10.1002/(sici)1522-2586(200002)11:2<75::aid-jmri1>3.0.co;2-p

Authors: Frederick H. Epstein, Andrew E. Arai

Institutions: National Institutes of Health, National Heart, Lung, and Blood Institute

Language: English

Topic: Advanced MRI Techniques and Applications

Subfield: Radiology, Nuclear Medicine and Imaging

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: hybrid

Estimated APC paid: $3,680