Combined cardiac and respiratory motion compensation for atrial fibrillation ablation procedures

US9186087B2 · kind B2 · utility

Assignees

• Siemens Aktiengesellschaft · DE
• FRIEDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN-NÜRNBERG · DE

Inventors

• Rui Liao · Princeton Junction, US
• Alexander Brost · Erlangen, DE
• Wen Wu · Plainsboro, US
• Terrence Chen · Princeton, US
• Joachim Hornegger · Effeltrich, DE
• Martin Koch · Neuenbürg, DE
• Norbert Strobel · Heroldsbach, DE
• Andreas Wimmer · Graz, AT

Key dates

• Filing date: Mar 29, 2012
• Grant date: Nov 17, 2015
• Expiry date: Jul 12, 2033

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/376
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method for compensating cardiac and respiratory motion in atrial fibrillation ablation procedures includes (a) simultaneously determining a position of a circumferential mapping (CFM) catheter and a coronary sinus (CS) catheter in two consecutive image frames of a series of first 2-D image frames; (b) determining a distance between a virtual electrode on the CS catheter and a center of the CFM catheter for a first image frame of the two consecutive image frames, and for a second image frame of the two consecutive image frames; and (c) if an absolute difference of the distance for the first image frame and the distance for the second image frame is greater than a predetermined threshold, compensating for motion of the CFM catheter in a second 2-D image.