Method for analysing an intracardiac electrogram, in particular for detecting a pulmonary vein isolation status, via a control system, wherein the intracardiac electrogram has been recorded at a, in particular predetermined, target region via a catheter inserted into a human body, wherein the catheter comprises multiple electrodes, wherein multiple channels of the intracardiac electrogram have been recorded by, preferably between, the electrodes, wherein the electrodes have a fixed order of placement on the catheter, wherein in an analysis routine, the control system determines an electrical status of the target region by analysing at least three of the channels, wherein the order of the electrodes on the catheter is provided to the control system or saved in a memory of the control system and that in the analysis routine the control system determines the electrical status of the target region based on relative spatial information including the order of placement of the electrodes on the catheter, wherein in the analysis routine the control system identifies activation candidates in at least three of the channels, wherein in the analysis routine the control system performs a classification routine for at least some of the activation candidates classifying the activation candidates into groups, the groups comprising at least one group assigned to local activations and/or at least one group assigned to far field interference, characterized in that in the classification routine the control system identifies a timing sequence and/or a timing difference between at least two activation candidates of different channels based on the spatial information to differentiate between local activations and far field interference and that the electrical status is an electrical isolation status of the target region relative to the left and/or right atrium and/or the rest of the left and/or right atrium. wherein in an analysis routine, the control system determines an electrical status of the target region by analysing at least three of the channels, wherein the order of the electrodes on the catheter is provided to the control system or saved in a memory of the control system and that in the analysis routine the control system determines the electrical status of the target region based on relative spatial information including the order of placement of the electrodes on the catheter, wherein in the analysis routine the control system identifies activation candidates in at least three of the channels, wherein in the analysis routine the control system performs a classification routine for at least some of the activation candidates classifying the activation candidates into groups, the groups comprising at least one group assigned to local activations and/or at least one group assigned to far field interference, characterized in that in the classification routine the control system identifies a timing sequence and/or a timing difference between at least two activation candidates of different channels based on the spatial information to differentiate between local activations and far field interference and that the electrical status is an electrical isolation status of the target region relative to the left and/or right atrium and/or the rest of the left and/or right atrium.