Abstract
Quantitative assessment of temporal stability of the myocardial signal and relative blood to myocardial contrast in free breathing respiratory triggered retrospectively cardiac gated cine steady-state free precession (RT-SSFP) imaging
Highlights
The SSFP sequence must attain and maintain the magnetization steady state (SS) as any interruption will entail severe imaging artifacts
In this work: (a) we propose quantitative metrics to assess the temporal stability of the myocardial signal and the blood to myocardial contrast during a cine SSFP sequence; and (b) evaluate the performance of three cine bSSFP acquisitions using these metrics: 1) the cardiac triggered (CT) unprepared SS; 2) 1 RR SS prepared breath hold (BH); and 3) min 35 oms SS prepared respiratory triggered (RT) sequence
A time-signal intensity (SI) graph was constructed from the mean SI from regions of interest (ROI) drawn in the liver, myocardium and blood pool at mid-ventricular level
Summary
The SSFP sequence must attain and maintain the magnetization steady state (SS) as any interruption will entail severe imaging artifacts. In this work: (a) we propose quantitative metrics to assess the temporal stability of the myocardial signal and the blood to myocardial contrast during a cine SSFP sequence; and (b) evaluate the performance of three cine bSSFP acquisitions using these metrics: 1) the cardiac triggered (CT) unprepared SS; 2) 1 RR SS prepared breath hold (BH); and 3) min 35 oms SS prepared respiratory triggered (RT) sequence
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