Moiré fringes

Last revised by Andrew Murphy on 2 Apr 2020

Moiré fringes are an interference pattern most commonly seen when acquiring gradient echo images using the body coil.

Because of lack of perfect homogeneity of the main magnetic field from one side of the body to the other, aliasing of one side of the body to the other results in superimposition of signals of different phases that alternatively add and cancel. This causes the banding appearance similar to the effect of looking through two screen windows.

ADVERTISEMENT: Supporters see fewer/no ads

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.