Meeting Banner
Abstract #3404

3D PROMO MRI with Automatic Initial Navigator Placement

Dan Rettmann1, Xiaodong Tao2, Jun Xie3, Ajit Shankaranarayanan4

1Global Applied Science Laboratory, GE Healthcare, Rochester, MN, United States; 2GE Healthcare, Beijing, China; 3MR Engineering, GE Healthcare, Waukesha, WI, United States; 4Global Applied Science Laboratory, GE Healthcare, Menlo Park, CA, United States

Prospective motion correction techniques have been shown to be beneficial in less compliant patient populations. The image-based PROspective MOtion (PROMO) correction performs best if navigators are optimally placed with respect to the anatomy. This work describes a new technique to automatically position the navigators based on an automatic scan planning algorithm that uses a rapid implicit symmetry axis determination.

Keywords

accuracy acquisition address affect anatomic anatomy application applied apply approved approximate artifacts atlas automatic automatically axial axis bottom brain channel china circularly coils columns comparable compatible complimentary composition computed conditions consistent contiguous copy coronal correction dead define defined depend dependent depicted described description detection determination determine determined determining engineering estimation evaluation extended filter final generating global halved head horizontal ideal improve incorporated inferior initial investigated issue known laboratory lightened localizer localizers location made many mask matrix metrics middle modified motion moving mutual navigator navigators offset optimized park patient pediatric people performance placement planning position positioning positions prescribed previous previously processing promo proposed prospective protocol proved pulse quantitative real receive recently reconstructed recovery reduce reduction reformat reformats registration reliable replacing reported representation representing resolution resultant rigid robust rotation science secs sixteen slab slice slices space speedup spiral subject superior symmetric template thick track tracking transformation transforms typically various version volume volunteer volunteers