Sequences acronyms
Due to manufacturers each using their own terminology to denominate their sequences, there are no standard denominations for each common type of sequence.
Here is a table of the equivalent manufacturers’ acronyms with the corresponding type of sequence.
| Type of sequence | Philips | Siemens | GE | Hitachi | Toshiba |
|---|---|---|---|---|---|
| Spin Echo (SE) | SE | SE | SE | SE | SE |
| Multi echo SE | Multi SE | Multi écho MS | SE | SE | Multi écho |
| Fast SE | Turbo SE | Turbo SE | Fast SE | Fast SE | Fast SE |
| Ultra fast SE | SSH-TSE UFSE | SSTSE HASTE | SS-FSE | FSE - ADA | (Super)FASE DIET |
| IR | IR IR TSE | IR/IRM TurboIR/TIRM | IR FSE-IR | IR | IR Fast IR |
| STIR | STIR STIR TSE | STIR Turbo STIR | STIR Fast STIR | STIR Fast STIR | STIR Fast STIR |
| FLAIR | FLAIR FLAIR TSE | FLAIR Turbo FLAIR | FLAIR Fast FLAIR | FLAIR Fast FLAIR | FLAIR Fast FLAIR |
| Gradient echo (GE) | FFE | GRE | GRE | GE | FE |
| Spoiled GE | T1-FFE | FLASH | SPGR MPSPGR | RSSG | RF-spoiled FE |
| Ultra fast GE | T1-TFE T2-TFE THRIVE | TurboFLASH VIBE | FGRE Fast SPGR FMPSPGR VIBRANT FAME LAVA | SARGE | Fast FE RADIANCE QUICK 3D |
| Ultrafast GE with magnetization preparation | IR-TFE | T1/T2-TurboFLASH | IR-FSPGR DE-FSPGR | Fast FE | |
| Steady state GE | FFE | FISP | MPGR, GRE | TRSG | FE |
| Contrast enhanced steady state GE | T2-FFE T2 | PSIF | SSFP | FE | |
| Balanced GE | Balanced FFE | Turbo FISP | FIESTA | BASG | True SSFP |
| SE-Echo planar | SE-EPI | EPI SE | SE EPI | SE EPI | SE EPI |
| GE-Echo planar | FFE-EPI TFE-EPI | EPI Perf EPIFI | GRE EPI | SG-EPI | FE-EPI |
| Hybrid echo | GRASE | TGSE | Hybrid EPI |