Patent ID: 9668704
Date: 2017-06-06
CPC Classifications: A61B,G01R

Claim:
1. A method for visually supporting an electrophysiology catheter application in a heart of a patient by correlating a 3D surface profile created using 3D image data recorded before the electrophysiology catheter application, with 3D mapping data from a catheter, comprising: (1) before initiating the electrophysiology catheter application, recording 3D image data for a body region comprising at least part of the heart, the 3D image data being collected using one of computerized tomography (CT) and magnetic resonance tomography (MR); (2) extracting at least a portion of the heart from said 3D image data, the extracting process comprising segmentation of the 3D image data, and deriving a 3D surface profile comprising at least an area of the heart to be treated from the 3D image data; (3) after recording the 3D image data, initiating the electrophysiology catheter application with a catheter being inserted into the heart, and a tip of the catheter being moved into contact with a series of different points on surfaces inside the heart including surfaces in the area of the heart to be treated; (4) performing a registration process after the extraction step and while the catheter application is ongoing, the registration process correlating the 3D surface profile created in the extraction step with 3D mapping data, the registration process comprising a first stage and a later in time second stage; (5) displaying the 3D surface profile and 3D mapping data which has been correlated by the registration process;