Imaging process and device by nuclear magnetic resonance

An image is realized by discrimination of intrinsic parameters of the studied tissues. It is composed in pointing out the attachment and mobility degrees of tissue nuclei. The displayed parameters represent the field heterogeneities at the microscopic and molecular level. The process is to acquire a first image with classical processes and then, in slightly varying the directing magnetic field, to acquire another image with the same methods. Another image of another type is then realized in representing the relative variations of relaxation times between this first and second image