An electrophysiology catheter system comprising; an electrophysiology catheter with an elongated distal end portion having a centre axis and being bendable in at least one direction transverse to the centre axis, comprising: two or more longitudinally spaced bands (2, 2') around said end portion, each band comprising a plurality of electrically isolated electrode segments (3, 3', 3", 3"') for detecting electrical signals and being arranged in a band around said end portion; a plurality of electrode wires each coupled to an electrode segment and extending through the distal end portion to a proximal end portion of the electrophysiology catheter; and a workstation arranged to receive electrical signals detected by each electrode segment by means of the electrode wires coupled thereto and comprising a processing unit configured to identify electrode segments that are in contact with tissue from the received electrical signals by comparison of the electrical signal from each electrode segment with that from one or more other electrode segments or a predetermined threshold value and presenting the identified electrode segments to an operator with an indication of the identified electrode segments' position in relation to a bending direction or another marker of roll angle of the distal end portion, wherein comparison of the electrical signal from each electrode segment with that from one or more other electrode segments or a predetermined threshold is one or a combination of the following: - comparing magnitudes of electrical signals from different electrode signals within a band; - comparing magnitudes of electrical signals from electrode segments in different bands; - comparing a magnitude of the electrical signal from each electrode segments to a predetermined threshold. two or more longitudinally spaced bands (2, 2') around said end portion, each band comprising a plurality of electrically isolated electrode segments (3, 3', 3", 3"') for detecting electrical signals and being arranged in a band around said end portion; a plurality of electrode wires each coupled to an electrode segment and extending through the distal end portion to a proximal end portion of the electrophysiology catheter; and a workstation arranged to receive electrical signals detected by each electrode segment by means of the electrode wires coupled thereto and comprising a processing unit configured to identify electrode segments that are in contact with tissue from the received electrical signals by comparison of the electrical signal from each electrode segment with that from one or more other electrode segments or a predetermined threshold value and presenting the identified electrode segments to an operator with an indication of the identified electrode segments' position in relation to a bending direction or another marker of roll angle of the distal end portion, wherein comparison of the electrical signal from each electrode segment with that from one or more other electrode segments or a predetermined threshold is one or a combination of the following: - comparing magnitudes of electrical signals from different electrode signals within a band; - comparing magnitudes of electrical signals from electrode segments in different bands; - comparing a magnitude of the electrical signal from each electrode segments to a predetermined threshold. - comparing magnitudes of electrical signals from different electrode signals within a band; - comparing magnitudes of electrical signals from electrode segments in different bands; - comparing a magnitude of the electrical signal from each electrode segments to a predetermined threshold.