Patent ID: 6368285
Filing Date: 2002-04-09
Classification: A61B

Abstract:
A method for intracardially mapping a condition of a chamber of a heart of a subject, said method comprising the steps of:a) providing a catheter having a distal tip, said catheter distal tip having at least one sensor contained therein or proximate thereto, said at least one sensor being capable of sensing condition information of said chamber and providing three-dimensional position information of the catheter tip in a positional frame of reference; b) acquiring a first image of said chamber, said first image taken from a first projection and containing topological information of said chamber; c) acquiring a second image of said chamber, said second image taken from a second projection different from said first projection, said second image containing topological information of said chamber, and wherein said first projection and said second projection are separated by an angle of about 75 degrees to about 105 degrees. d) registering said first image and said second image with said positional frame of reference; e) advancing said distal tip of said catheter into said chamber; f) navigating said distal tip of said catheter proximate an acquisition point in said chamber, said navigation guided by topological information contained in or derived from said first and said second images; g) acquiring condition information and position information at said acquisition point with said at least one sensor; h) repeating step (f) and (g) at additional acquisition points to generate a map of said condition in said chamber.