Dr Doyle graduated in medicine from the University of Otago and completed training in Diagnostic Radiology in Auckland. He then spent several years in the USA, teaching and engaging in research first in South Carolina and then at the University of Utah where he was Assistant Professor in Radiology from 1989 to 1994. His interests since that time have focussed on musculoskeletal and breast imaging with an emphasis on MRI, digital imaging techniques and interventional procedures. He has continued this work since returning to Auckland in 1994, being involved in the New Zealand Bone and Soft Tissue Tumour Registry throughout. He currently works at the University of Auckland, Auckland DHB and Ascot Radiology.