CONTRAST AGENT TO ASSESS QUALITY OF OCCLUSION THROUGH IMPEDANCE MEASUREMENT

摘要

A method, system, and device for predicting lesion quality. Specifically, lesion quality may be predicted based on an assessment of pulmonary vein occlusion using injection of an impedance-modifying agent and evaluation of changes in impedance measurements recorded by an electrode located distal to an occlusion element of the treatment device used to inject the impedance-modifying agent. The quality of the occlusion may be rated based on the changes in impedance over time within the pulmonary vein. For example, the quality of the occlusion may be rated as being good, fair, or poor. This assessment may be quickly and easily communicated to an operator.

主权项

1. A system for assessing occlusion, the system comprising:
a treatment device including an occlusion element and an electrode distal to the occlusion element; and a console including:
a fluid source in fluid communication with the treatment device, the fluid being a mixture of a contrast medium and an impedance-modifying agent; anda processor programmed to receive impedance values recorded by the electrode, to calculate a change in the impedance values over time, and to determine an occlusion status based on the change in the impedance data.