An electrode assembly for use with an electrophysiological catheter has aplurality ofindependently controlled ablation electrodes distributed radially around theelectrode assembly.Two ablation electrodes may be positioned in opposition to each other. Theelectrode assemblymay also have microelectrodes for sensing tissue and/or temperature. Methodsfor using acatheter equipped with such an electrode assembly may include preferentiallyemitting energyin a radial direction.
