Table 1.
Optimal repetition times, TR, for T1 estimation in case of different tissues and numbers of acquisitions at 1.5 T and 3 T.
| Tissue | 1.5T | 3T | ||||
|---|---|---|---|---|---|---|
|
|
|
|||||
| 2 images | 3 images | 4 images | 2 images | 3 images | 4 images | |
| liver | 490; 4000 | 490; 510; 4,000 | 380; 490; 510; 4,000 | 650; 4,000 | 570; 650; 4,000 | 570; 570; 650; 4,000 |
| skeletal muscle | 720; 4,000 | 720; 720; 4,000 | 680; 720; 720; 4,000 | 1,090; 4,000 | 990; 1,090; 4,000 | 870; 990; 1,090; 4,000 |
| heart | 840; 4,000 | 770; 840; 4,000 | 770; 790; 840; 4,000 | 1,060; 4,000 | 910; 1,060; 4,000 | 770; 910; 1,060; 4,000 |
| kidney | 570; 4,000 | 430; 570; 4,000 | 430; 460; 570; 4,000 | 910; 4,000 | 790; 910; 4,000 | 750; 790; 910; 4,000 |
| cartilage | 760; 4,000 | 690; 760; 4,000 | 630; 690; 760; 4,000 | 880; 4,000 | 770; 880; 4,000 | 770; 780; 880; 4,000 |
| white matter | 690; 4,000 | 690; 710; 4,000 | 640; 690; 710; 4,000 | 850; 4,000 | 780; 850; 4,000 | 730; 780; 850; 4,000 |
| gray matter | 920; 4000 | 840; 920; 4000 | 800; 840; 920; 4,000 | 1,150; 4,000 | 980; 1,150; 4,000 | 910; 980; 1,150; 4,000 |
| optic nerve | 960; 4,000 | 960; 1,060; 4,000 | 960; 1,060; 1,100; 4,000 | 970; 4,000 | 910; 970; 4,000 | 910; 970; 1,030; 4,000 |
| spinal cord | 600; 4,000 | 550; 600; 4,000 | 450; 550; 600; 4,000 | 760; 4,000 | 660; 760; 4,000 | 660; 700; 760; 4,000 |
| blood | 1,120; 4,000 | 840; 1,120; 4,000 | 830; 840; 1,120; 4,000 | 1,120; 4,000 | 1,040; 1,120; 4,000 | 1,030; 1,040; 1,120; 4,000 |