Hi, We have just begun collecting data on 3T Siemens PRISMA using ABCD sequences including the T2w_vNav which seems to be having a black streak artefact. This artefact seemingly disappears when the acceleration factor 3D is changed from 3 to 1 and the acceleration factor PE is changed from 1 to 3.
Has anyone had this experience ?
What are the repercussions of swapping the types of acceleration factors ?
Thanks
NB