Special Tab

Use the Special tab

1. Select a pulse sequence in the Pulse Sequences List.
2. Open Set Parameters.
3. Click the Special tab.
4. Adjust the settings you want to change.

Special parameters

Parallel Imaging

Enables accelerated acquisition and displays the acceleration factor.

GE: ASSET/ARC | Siemens: mSENSE/GRAPPA | Philips: SENSE/GRAPPA

Fat suppression

Suppresses fat signal using spectral methods or inversion recovery pulses.

GE: FatSat / STIR | Siemens: Fat Sat / IR | Philips: SPIR / SPAIR / STIR

Fat sat Inversion Time (available when Fat suppression is set to IR pulse)

Timing for the applied Inversion Recovery Pulse

GE / Siemens / Philips: TI (inversion time)

Encoding order

Defines k-space filling strategy (default, centric, reversed-centric, reversed).

GE: Phase Encoding Order | Siemens: K-space Ordering | Philips: Profile Order

Turbo factor / ETL

Number of echoes acquired per TR in fast spin echo sequences.

GE: ETL | Siemens: Turbo Factor | Philips: TSE Factor

Partial Fourier

Acquires partial k-space to reduce scan time - if Parallel Imaging is set to SENSE or GRAPPA, this parameter becomes unavailable.

Options include phase-conjugate (half-Fourier), read-conjugate (partial echo), or off.

GE: Fractional NEX | Siemens: Partial Fourier | Philips: Halfscan

• Partial Fourier factor (available when Partial Fourier is set to phase-conjugate or read-conjugate) - set from 0.6 to 1

Conclusion

You've learned how to find and use the Special tab, as well as how these settings map to common vendor terminology.