<；P>；PROBLEM TO BE SOLVED: To provide an electrode catheter which is composed by mounting a plurality of electrodes on each of a plurality of catheter distal end parts, and allows an operator to easily recognize on which position in which catheter distal end part the electrode specified on an X-ray shadow is mounted. <；P>；SOLUTION: The electrode catheter includes a catheter body 10, a control handle 20, the catheter distal end parts 31, 32, 33 and 34, and a plurality of ring-like electrodes mounted on the respective catheter distal end parts. The electrode width of one ring-like electrode 41B mounted on a first catheter distal end part 31 and the electrode width of one ring-like electrode 42C mounted on a second catheter distal end part 32 are wider than the electrode width of the other ring-like electrodes. For the ring-like electrode 41B and ring-like electrode 42C of the wide electrode width, arrangement positions in the catheter distal end parts where they are respectively mounted are different from each other. <；P>；COPYRIGHT: (C)2011,JPO&INPIT
