The invention involves a device for generating images using nuclear magnetic resonance in which coils are provided for applying magnetic fields to the patient and for recording the displacement of the atomic nuclei of the patient from their equilibrium state by a high-frequency magnetic excitation pulse....http://www.google.ca/patents/US4528510?utm_source=gb-gplus-sharePatent US4528510 - Device for generating images of an object under examination using nuclear magnetic resonance
