Implementing Systems Focused Rotations in Radiology. The new curriculum in Radiodiagnosis that commenced in December 2009 (NZ) and January 2010 (Australia and Singapore) requires that registrars should be rostered in system-focused rotations in years 4 & 5. For most training centres this will first impact in December 2012 (NZ) or January 2013 (Australia, Singapore). Last updated in 2017.