1. An interventional system for cardiovascular interventions, comprising a catheter with an electrode; an electrographic device that is coupled to the electrode of the catheter which generates electrophysiological maps from electrophysiological excitation patterns measured at locations in an interventional region which come into electrical communication with the electrode; an imaging device which acquires images of the interventional region; a data processing unit coupled to the imaging device and the electrographic device configured to perform the following steps: a) storing a sequence of pre-operatively acquired images (I 1 ,. .. I k ,. .. ) of the catheter in the interventional region, each image being stored in association with a corresponding electrophysiological map (E 1 ,. .. E k ,. .. ) measured concurrently during its acquisition; b) acquiring an actual image (I) of the catheter in the interventional region during a live intervention; c) selecting a reference image (I k ) from the stored sequence of pre-operative images (I 1 ,. .. I k ,. .. ) according to a degree of similarity between the associated electrophysiological map and a desired electrophysiological pattern (E k ); d) locating a reference position (T) of a reference probe of the catheter in the selected reference image (I k ) and determining a corresponding target position (T′) in the actual image (I).