1. A method for processing and visualizing data obtained with a medical device, suitable for generating data for imaging, regarding a perfusion of at least one region of the lung or of at least one region of each of the lung and of the heart, the method comprising the steps of: providing a quantity of data based on cardiac- and perfusion-related signals (CPRS) via a signal pattern, of at least one location, within a period of observation; determining and providing phase information from the CPRS in relation to at least one comparison variable; processing the quantity of data based on CPRS, regarding perfusion of regions of the lung or regions of the lung and of the heart of a patient, taking into account the phase information determined for a determination and providing of a quantity of data, of the at least one location, and a perfusion-specific variable characteristic of the period of observation; and generating and providing an output signal for a location-specific visualization of the quantity of data, of the at least one location, and a perfusion-specific variable characteristic of the period of observation.