Methods and apparatus for electrode placement and tracking

An electrode assembly, comprising:

• an electrode body;
• one or more tubular members extending from the electrode body and having a distal tip, at least some of the one or more tubular members having a lumen with a distal opening in the distal tip;
• and
• means on the electrode body for dispensing a conductive fluid or gel from a reservoir through the lumen(s) and out of the distal opening(s) of the tubular member(s), wherein the one or more tubular members each have a distribution channel extending across a tissue-contacting surface thereof for receiving the conductive fluid or gel from the lumen so that the conductive fluid or gel may flow through the channel over the patient tissue to form an electrically conductive path, wherein the gel enters each distribution channel directly from the lumen.