ARTICLE - Pulse sequence parameters window

Double clicking a sequence in the list opens the pulse sequence parameters.

The pulse sequence parameter settings are used to change the SNR, image contrasts, simulation times and more. By double clicking a loaded pulse sequence, the parameter settings window is shown in the bottom right of the interface, as seen below.

Indicators for relative SNR, voxel sizes, image plane orientation and real life scan-time IRL will always be seen on the bottom right. Other settings are shown in different tabs. After a slice has been set, click the save button to save the sequence before running.

The following tabs and settings can be found:

1. Geometry
   1. Field of view Read, in mm, with corresponding direction RL/AP/FH
   2. Field of view Phase, in mm, with corresponding direction RL/AP/FH
   3. Foldover direction, in direction RL/AP/FH
   4. Resolution/Matrix Read, as pixels
   5. Resolution/Matrix Phase, as pixels
   6. Slices, in numbers
   7. Slice thickness, in mm
   8. Slice gap, in mm
2. Sequence
   1. Echo time, TE, in ms
   2. Repetition time, TR, in ms
   3. Bandwidth, as total Hz
   4. Bandwidth/pixel, in Hz
   5. NEX/NSA/Averages, number of excitations
   6. Flip angle, in degrees
   7. Foldover suppression (over sampling)
3. Special (only available for some pulse sequences)
   1. Turbo factor/ETL, in numbers, with Effective echo time indicator
   2. Fat suppression, different selections
   3. Fat sat. Inversion Time (TI), in ms
   4. IR type
   5. IR duration, in ms
   6. Inversion Time (TI), in ms
4. Reconstruction (usually left as default)
   1. Reconstructor, interpreting signals into images
   2. Shift K-space lines 1 pixel, used to manipulate ghosting artifacts in EPI-sequences.
5. Advanced (typically not found in clinical scanners without unrestricted access to scanner software)
   1. RF duration, (duration of the RF pulse) in ms