The purpose of this thesis is to develop an algorithm, which based on some selected parameters, is able to extract from a worldwide database of MRIs, the magnetic resonance closest to the satisfaction of these criteria in other words it can provide a 3D model of a patients’ brain without the specific subject MRI. The first chapter consists of a brief introduction to the anatomy of the brain and the mechanisms of impulse transmission in the network of neurons, then the main neuroimaging techniques are explained, with particular attention to the magnetic resonance that is intended to be avoided with the developed algorithm.