Fast MultiPlanar Spoiled GRadient echo (FMPSPGR)
or Dual Fast Field Echo

   A 2-dimensional multi-section spoiled gradient echo technique. Spoiling provides T1-weighting. Typically, TR is more than 100 msec, or as high as breathholding will allow (but always less than 500 msec to provide heavy T1-weighting). Flip angle is usually 60-90 degrees, but is reduced if TR is less than 100 msec.
   For greatest efficiency, TE is often minimum. For optimal fat-water opposed-phase effect, TE should be close to 2.3 msec. For optimal in-phase effect, TE should be 4.6 msec, although 4.2 msec is adequate.
   Best results for in-phase and opposed phase imaging used dual gradient echo technique, where two gradient echoes are obtained after each excitation, with 2.3 msec and 4.6 msec TEs.

In-phase spoiled gradient echo image with TR/TE = 120/4.2. Arrow indicates adrenal adenoma that is isointense with liver, both of which have much higher signal intensity than spleen.	Opposed-phase spoiled gradient echo image with TR/TE = 120/2.1. The cancellation of signals from water and fat within the adenoma has caused the signal intensity to reduce. Notice that the liver has signal intensity more similar to that of spleen compared the in-phase image at left, indicating mild fatty infiltration.