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Table 1 Details of the GraSE sequences

From: Gradient Spin Echo (GraSE) imaging for fast myocardial T2 mapping

  9 Ec 6 Ec (LR) 7 Ec no s.e.
Acquisition matrix 176 × 168 (152 × 138)
Voxel size 2 × 2 mm 2 (2.32) reconstr. to 1 × 1 mm 2
Slice thickness 10 mm
TR 1 RR interval
First TE 23.6 ms 23.6 ms 11.8 ms
∆ TE 11.8 ms
Number of echoes 9 6 7
EPI/SENSE factor 7/2
Black blood/Fat sat Dual Inversion/SPIR
Profile order Linear
TSE shot duration 118 ms 83 ms 83 ms
Time shift between first and last echo 94.4 ms 59 ms 70.8 ms
Bandwidth (P/F) 173 Hz/1740 Hz
  1. Values in bold correspond to the six-echo variant proposed for clinical application and which was analyzed in detail.