mri-sequences
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| mri-sequences [2023/02/23 13:14] – jonas | mri-sequences [2024/02/19 14:52] (current) – ari | ||
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| ===== Structural ===== | ===== Structural ===== | ||
| - | ==== MPRAGE | + | ==== T1-weighted |
| + | === MPRAGE | ||
| High resolution, T< | High resolution, T< | ||
| Line 15: | Line 16: | ||
| | Parallel imaging | | Parallel imaging | ||
| - | ==== For Incidental Findings | + | ====T2-weighted==== |
| - | + | === Turbo Spin Echo (TSE) === | |
| - | === TSE === | + | |
| Quick, high (in-plane) resolution, T< | Quick, high (in-plane) resolution, T< | ||
| Line 34: | Line 34: | ||
| | Parallel imaging | | Parallel imaging | ||
| - | === TSE_FLAIR | + | === TSE FLAIR === |
| High (in-plane) resolution, T< | High (in-plane) resolution, T< | ||
| Line 50: | Line 50: | ||
| | TE | 100 ms | | | TE | 100 ms | | ||
| | Flip angle | 150 deg | | Flip angle | 150 deg | ||
| + | |||
| + | ===== Diffusion MRI ===== | ||
| + | High resolution, T< | ||
| + | |||
| + | ^ Parameter | ||
| + | | Acquisition time | 8 min 52 s | | ||
| + | | Type | 2D (Axial slices) | ||
| + | | b-value | ||
| + | | Number of directions | ||
| + | | FOV | 192 mm x 192 mm | | ||
| + | | Matrix | ||
| + | | Resolution | ||
| + | | TR | 7800 ms | | ||
| + | | TE | 90 ms | | ||
| + | | Flip angle | ||
| + | | Parallel imaging | ||
| + | |||
| ===== BOLD fMRI ===== | ===== BOLD fMRI ===== | ||
| Line 168: | Line 185: | ||
| | TE | 5.19 ms, 7.65 ms | | | TE | 5.19 ms, 7.65 ms | | ||
| | Flip angle | 60 deg | | | Flip angle | 60 deg | | ||
| + | ==== High Resolution Fieldmaps ==== | ||
| + | |||
| + | Fieldmaps 2 mm isotropic or higher spatial resolution. They match with High resolution fMRI sequences. | ||
| + | |||
| + | === Fieldmapping_2iso === | ||
| + | High resolution dual-echo fieldmap | ||
| + | |||
| + | ^ Parameter | ||
| + | | Acquisition time | 1 m 19 s | | ||
| + | | Type | 2D | | ||
| + | | Slices | ||
| + | | Slice thickness | ||
| + | | Slice gap | 25% (0.5 mm) | | ||
| + | | FOV | 192 mm x 192 mm | | ||
| + | | Matrix | ||
| + | | Resolution | ||
| + | | TR | 400 ms | | ||
| + | | TE | 5.19 ms, 7.65 ms | | ||
| + | | Flip angle | 60 deg | | ||
| + | |||
| + | === Fieldmapping_2iso_WholeBrain === | ||
| + | High resolution dual-echo fieldmap with whole brain coverage | ||
| + | |||
| + | ^ Parameter | ||
| + | | Acquisition time | 1 m 26 s | | ||
| + | | Slices | ||
| + | | TR | 437 ms | | ||
| + | Other parameters are those of Fieldmapping_2iso. | ||
| + | |||
| + | === Fieldmapping_2iso_LargerFOV === | ||
| + | High resolution dual-echo fieldmap with larger FOV | ||
| + | |||
| + | ^ Parameter | ||
| + | | Acquisition time | 1 m 24 s | | ||
| + | | Slices | ||
| + | | FOV | 205 mm x 205 mm | | ||
| + | | Matrix | ||
| + | Other parameters are those of Fieldmapping_2iso. | ||
| + | |||
| + | === Fieldmapping_1.5x1.5x2mm === | ||
| + | High resolution dual-echo fieldmap with our highest achievable in-plane resolution | ||
| + | |||
| + | ^ Parameter | ||
| + | | Acquisition time | 1 m 45 s | | ||
| + | | Slices | ||
| + | | Matrix | ||
| + | | Resolution | ||
| + | Other parameters are those of Fieldmapping_2iso. | ||
| + | |||
mri-sequences.1677158074.txt.gz · Last modified: 2023/02/23 13:14 by jonas