Estimation and mapping of ablation volume

Details Estimation and mapping of ablation volume Estimation and mapping of ablation volume

A - Human Necessities

61

B

A61B 18/12 (2006.01) A61B 18/14 (2006.01)

Patent

CA 2725865

Tissue ablation systems and methods are provided, wherein a cardiac catheter incorporates a pressure detector for sensing a mechanical force against the distal tip when engaging an abla-tion site. Responsively to the pressure detector, a controller computes an ablation volume according to relationships between the contact pressure against the site, the power output of an ablator, and the energy application time. A monitor displays a map of the heart which includes a visual indication of the com-puted ablation volume. The monitor may dynamically display the progress of the ablation by varying the visual indication.

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