Object ID: 00000018WIA30EF3970GYZ
Topic ID: id_40026880 Version: 1.5
Date: Aug 20, 2022 12:00:49 PM

3D FGRE/FSPGR dual echo

Consider this information when modifying a high resolution dual echo 3D FGRE/ FSPGR sequence. It allows the acquisition of the first out-of-phase TE and the first in-phase TE within a single breathold in axial and coronal scan planes.

For specific scan parameter values, select a protocol from your GE or Site library.

Scan selections: 3D Mode, Gradient Echo family, Fast GRE or Fast SPGR pulse.

General

3D dual echo is compatible with body/torso array coils and cardiac coils.

Imaging Options

ARC: 3D Dual Echo supports ARC. If you build a series within a scan session rather than get a protocol from the GE library, follow these steps to enable ARC:
1. From the Scan Timing screen, select # of TEs per Scan = 2.
2. Select ARC from the Imaging Options screen. ARC is not selectable unless you complete the parameter selections in this order.
3. Repeat the above two steps if you select a different PSD, for example switching between FGRE and FSPGR.
4. From the Accelerator tab, select a Phase acceleration factor: typically Phase = 2 and Slice = 1.
5. Select the remaining scan parameters.

User CVs

Click the Advance tab to view the available User CVs. The CVs may vary based on the field strength and selected scan and imaging parameters.

Apodization Level
Image Acquisition Delay
K-Space
Turbo ARC
PURE compensation
- Use with 3.0T systems
Slice Partial Fourier
Turbo mode

Post-process tasks

There are multiple compatible post-process tasks. For details, see Add post-process task.

Maximum Intensity Projection
Multi Planar Reconstruction
Image Enhancement Filters