Patent ID: 7232437

Claim:
A method for assessing efficacy of a lesion formed on a human heart where said lesion is intended to be formed as a transmural lesion through a wall thickness of myocardial tissue and with said lesion having a depth dimension of penetration into said tissue, an elongated dimension on a surface of said tissue and a narrow width dimension transverse to said elongated dimension, said method comprising: (a) placing a first electrode at said tissue on a first side of said lesion; (b) placing a second electrode at a said tissue on a second side of said lesion with said lesion between said first and second sides; (c) applying an electrical signal to said first electrode; (d) noting a received response to said electrical signal at said second electrode; and (e) processing said received response to both determine (i) an existence of a discontinuity of said lesion and (ii) approximating a position of a location of said discontinuity along said elongated dimension.