Table 1. Comparison of Scan Parameters between 1.5T vs. 3T CMR Perfusion Imaging.
1.5T (SignaHDxt) | 3T (Magnetom Skyra) | |
---|---|---|
Coil | 8-element phased-array surface coil | 32-channel body coil |
Perfusion sequence | Hybrid gradient echo/echo-planar pulse sequence | TurboFLASH |
Echo time (ms) | 1.2 | 1.03 |
Repetition time (ms) | 2.9 | 156 |
Flip angle (°) | 20 | 10 |
Slice thickness (mm) | 8 | 8 |
Field-of-view (cm) | 36 × 36 | 34 × 36 |
Acquisition matrix size | 128 × 128 | 192 × 126 |
Pixel size (mm) | 2.8 × 2.8 | 1.8 × 2.8 |
Delayed enhancement sequence | Phase-sensitive myocardial delayed enhancement sequence | Phase-sensitive inversion recovery sequence |
Echo time (ms) | 2.6 | 1.96 |
Repetition time (ms) | 5.7 | 750 |
Flip angle (°) | 20 | 20 |
Inversion time | Individually adjusted | Individually adjusted |
Slice thickness (mm) | 8 | 8 |
Field-of-view (cm) | 36 × 36 | 37 × 37 |
Acquisition matrix size | 192 × 128 | 256 × 192 |
Pixel size (mm) | 1.9 × 2.8 | 1.5 × 1.9 |
CMR = cardiovascular magnetic resonance