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. Author manuscript; available in PMC: 2008 May 26.
Published in final edited form as: Magn Reson Med. 2004 Jul;52(1):123–130. doi: 10.1002/mrm.20126

FIG. 2.

FIG. 2

a: SNR normalized per root scan time obtained from the anterior wall of the left ventricle from end-diastolic short-axis images from one healthy volunteer, and the sequence efficiency plotted against TR. The ROI used for the measurements was positioned to avoid flow artifact. Normalized scan time is relatively insensitive to TR except at very high bandwidths, when efficiency drops significantly. The box is an operating point that balances speed performance with SNR performance. b–d: Example short-axis end-diastolic images at selected TRs (5.1 ms, 4.0 ms, and 3.0 ms).