Kevin M. Koch1, Kevin F. King1,
Brian A. Hargreaves2, Graeme C. McKinnon1
1Applied Science Laboratory, GE
Healthcare, Waukesha, WI, United States; 2Department of Radiology,
Stanford University, Palo Alto, CA, United States
Both
the MAVRIC and SEMAC methods have been shown capable of significantly
reducing susceptibility artifacts near metallic implants. Here, we demonstrate that advantageous
features of both methods can be utilized in combination. In particular, the z-selectivity of the
SEMAC can be interfaced with the encoding mechanisms and spectral overlap
utilized by MAVRIC. In doing so, a
technique that offers increased volume selectivity while maintaining smooth
spectral image combinations is demonstrated.
Demonstrations of this hybrid approach on phantom and in-vivo implant
scenarios are presented.
Keywords