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 | ||