The place of magnetic resonance imaging in health care.

Magnetic resonance imaging has been an important advance in diagnostic imaging technology and is now widely established in many countries. However, evidence of proven benefit in patient management and outcome remains limited. Health policy makers, professional groups and administrators are faced with a range of questions on the technical capabilities, costs and comparative advantage over other diagnostic methods. The challenge remains to use this expensive technology in an effective manner, with critical review of its cost effectiveness and its suitability for individual health care programs.