Procedure:
A standardized MRA scanning protocol with an echo time of <5 msec was implemented at Montefiore Medical Center in May 2016. Retrospective chart review identified 29 patients ≤ 21 years with SCA cerebral vasculopathy and an MRA head pre- and post-May 2016. Level of arterial stenosis on MRA, echo time, and treatment plans were documented both pre- and post-implementation. McNemar analysis determined the significance of change in treatment plans before and after implementation of the standardized scanning protocol.