ACR MRI accreditation: yesterday, today, and tomorrow.

The ACR's Magnetic Resonance Imaging (MRI) Accreditation Program has generated controversy and debate since the Committee on MRI Accreditation began the development of the program in the early 1990s. This article discusses the motivation and development process for the program. It also presents outcomes from the MRI Accreditation Program, including passing and failing statistics by field strength and body part. The on-site survey process and outcomes are presented, and a case study is described.