Ultrashort echo‐time MRI versus CT for skull aberration correction in MR‐guided transcranial focused ultrasound: <i>In vitro</i> comparison on human calvaria

Abstract

The authors have demonstrated that transcranial focal heating can be significantly improved in vitro by using UTE MRI to compute skull-induced ultrasound aberration corrections. Their results suggest that UTE MRI could be used instead of CT to implement such corrections on current 0.7 MHz clinical TcMRgFUS devices. The MR image acquisition and segmentation procedure demonstrated here would add less than 15 min to a clinical MRgFUS treatment session.