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MRI in Practice
Catherine Westbrook, John Talbot
Verlag Wiley-Blackwell, 2018
ISBN 9781119392002 , 416 Seiten
5. Auflage
Format ePUB
Kopierschutz DRM
Geräte
Acronyms
| Generic | Siemens | GE | Philips | Hitachi | Toshiba |
| Pulse sequences |
| Conventional spin-echo (SE) | SE | SE | SE | SE | SE |
| Turbo spin-echo (TSE) | TSE | FSE | TSE | FSE | FSE |
| Single-shot TSE (SS-TSE) | HASTE | SS-FSE | SS-TSE | SS-FSE | FASE |
| TSE (with restoration pulse) | RESTORE | FRFSE | DRIVE | driven equilibrium FSE | T2 Puls FSE |
| Inversion recovery (IR) | IR | IR/MPIR | IR | IR | IR |
| Fast inversion recovery | TIR | Fast IR | IR-TSE | IR | IR |
| Short tau IR (STIR) | STIR | STIR | STIR | STIR | fast STIR |
| Fluid-attenuated IR (FLAIR) | turbo dark fluid | FLAIR | FLAIR | FLAIR | fast FLAIR |
| Gradient-echo (GRE) | GRE | GRE | FFE | GE | field echo |
| Coherent gradient-echo | FISP | GRASS | FFE | rephased SARGE | SSFP |
| Incoherent gradient-echo | FLASH | SPGR | T1 FFE | spoiled SARGE | fast FE |
| Reverse-echo gradient-echo | PSIF | SSFP | T2 FFE | time-reversed SARGE | — |
| Balanced gradient-echo | true FISP | FIESTA | BFFE | balanced SARGE | true SSFP |
| Echo-planar imaging (EPI) | EPI | EPI | EPI | EPI | EPI |
| Double-echo steady state | DESS | — | — | — | — |
| Balanced dual excitation | CISS | FIESTA-C | — | phase balanced SARGE | — |
| Multi-echo-data-image-combination | MEDIC | MERGE | MFFE | — | — |
| Fast gradient-echo | turbo FLASH | fast GRE, fast SPGR | TFE | RGE | Fast FE |
| Hybrid sequence | TGSE | — | GRASE | — | Hybrid EPI |
| Contrast parameters |
| Repetition time (TR) | TR | TR | TR | TR | TR |
| Time to echo (TE) | TE | TE | TE | TE | TE |
| Time from inversion (TI) | TI | TI | TI | TI | TI |
| Flip angle | flip angle | flip angle | flip angle | flip angle | Flip angle |
| Number of echoes (in TSE) | turbo factor | ETL | turbo factor | shot factor | ETL |
| b factor/value | b factor | b factor | b factor | b factor | b factor |
| Geometry parameters |
| Field of view (FOV) | FOV (mm) | FOV (cm) | FOV (mm) | FOV (mm) | FOV (mm) |
| Rectangular FOV | FOV phase | PFOV | rectangular FOV | rectangular FOV | rectangular FOV |
| Slice gap | distance factor | gap | gap | slice interval | gap |
| Data acquisition parameters |
| Averages | average | NEX | NSA | NSA | NSA |
| Bandwidth | bandwidth (Hz/pixel) | receive bandwidth (KHz) | fat water shift (pixel) | bandwidth (KHz) | bandwidth (KHz) |
| Variable bandwidth | optimized bandwidth | variable bandwidth | optimized bandwidth | variable bandwidth | matched bandwidth |
| Partial averaging | half Fourier | fractional NEX | half scan | half scan | AFI |
| Partial echo | asymmetric echo | partial echo | partial echo | half echo | matched bandwidth |
| Parallel imaging (image based) | mSENSE | ASSET | SENSE | RAPID | SPEEDER |
| Parallel imaging (k-space based) | GRAPPA | ARC | — | — | — |
| Artifact reduction techniques |
| Radial k-space filling | BLADE | PROPELLOR | multiVane | RADAR | JET |
| Gradient moment rephasing | GMR/flow comp | flow comp | flow comp/FLAG | GR | FC |
| Presaturation | pre SAT | Sat | REST | Pre SAT | Pre SAT |
| Moving sat pulse | travel SAT | walking SAT | travel REST | Sequential pre SAT | BFAST |
| Fat saturation | fat SAT | chem SAT | SPIR | Fat Sat | MSOFT |
| Out-of-phase imaging | DIXON | IDEAL | ProSET | Water excitation | PASTA |
| Respiratory... |
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