Sequence Tab

Use the Sequence tab

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

Sequence parameters

Effective TE (TE)

Time between RF excitation and echo formation, influencing image contrast.

GE / Siemens / Philips: TE

Repetition Time (TR)

Time between successive excitations of the same slice.

GE / Siemens / Philips: TR

Refocus Flip Angle

Flip angle of refocusing pulses, particularly important in FSE/TSE sequences.

GE: Refocus Angle | Siemens: Refocusing Flip Angle | Philips: Refocusing Angle

Bandwidth

Receiver bandwidth, affecting SNR, chemical shift, and distortion.

GE: Bandwidth | Siemens: Receiver Bandwidth | Philips: Bandwidth

Bandwidth per pixel

Bandwidth normalized per pixel; useful for understanding distortion behavior.

GE: BW/Pixel | Siemens: Pixel Bandwidth | Philips: Bandwidth per Pixel

NEX / NSA / Averages

Number of signal averages; increases SNR following the square-root relationship.

GE: NEX | Siemens: Averages | Philips: NSA

Foldover suppression

Reduces aliasing from anatomy outside the field of view.

GE: No Phase Wrap | Siemens: Anti-Aliasing | Philips: Foldover Suppression

Concatenations mode (visible when multiple slices are selected)

Controls how slices are grouped and acquired across TR periods:

• Automatic: Corsmed selects the most efficient number of concatenations based on the number of slices and the selected TR.
• Manual: allows direct input of the number of concatenations.

GE: # of Acquisitions | Siemens: Concatenations | Philips: Packages / Shot Mode

Conclusion

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