The present state of NMR tomography and its future.

The use of nuclear magnetic resonance (NMR) tomography requires close co-operation between radiologists and doctors working in nuclear medicine, so that experience gained in computed tomography and diagnostic function programmes can be exchanged. With regard to the technology of the magnets, the main demand at the moment is for imaging. In this area, special magnetic-field strengths, spools and evaluation procedures should be developed and optimised for the various applications. A list of guidelines must be worked out, and a strategy for the application of NMR tomography within general diagnostic procedures must be drawn up. Further progress will be brought about by developments such as breath and cardiac gating, as well as by the introduction of contrast media. In order to keep the cost of examinations within certain limits, it is necessary that plans are made to install an appropriate number of NMR devices.