field echo

field echo

An MRI term for an echo produced by reversing the direction of the magnetic field gradient to cancel out the position-dependent phase shifts that have accumulated due to the gradient.
References in periodicals archive ?
2: Coronal field echo sequence Monochorionic Monoamniotic twin gestation with Donor (*) and pump twin (black arrow) with absent head, upper torso and upper limbs.
3: Coronal field echo sequence Monochorionic Monoamniotic twin gestation Donor (*) twin and its long cord (Black arrows).
There is not much to choose between Schelm and the other member of the field Echo Bob on running at Tipperary early last month, but it looks significant that David Casey, who rode Schelm at the venue a year ago and has been aboard for his last six starts, has committed himself to maintaining his partnership with Bahrain Storm instead.
Incoherent Gradient Echo (Gradient Spoiled) (MPGR, FLASH, STAGE, GRE, Field Echo, Short)
However, MTC is best visualized in gradient or field echo sequences and is least observed on fast spin echo images.

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