System and Method for Detecting Sheathing and Unsheathing of Localization Elements

An electrophysiology system, comprising:

• a processor configured to:
• receive as input a plurality of localization signals from a respective plurality of localization elements disposed on an electrophysiology catheter;
• extract from each localization signal of the plurality of localization signals a respective quadrature component;
• and
• detect whether a first localization element of the plurality of localization elements is positioned within a sheath or positioned outside of the sheath by comparing a first quadrature component of a first localization signal received from the first localization element to a second quadrature component of a second localization signal received from a second localization element.

An electrophysiology system, comprising:

• a processor configured to:
• receive as input a first localization signal from a first localization element disposed on an electrophysiology catheter, wherein the first localization signal comprises a first quadrature component;
• receive as input a second localization signal from a second localization element disposed on the electrophysiology catheter, wherein the second localization signal comprises a second quadrature component;
• compare the first quadrature component and the second quadrature component;
• and
• detect a localization element/sheath state change for at least one of the first localization element and the second localization element based on the comparison between the first quadrature component and the second quadrature component.

A non-transitory computer readable medium having embodied thereon computer-readable code that, when executed, causes an electrophysiology system to execute steps comprising:

• obtaining a first localization signal from a first localization element disposed on an electrophysiology catheter, the first localization signal including a first quadrature component;
• obtaining a second localization signal from a second localization element disposed on the electrophysiology catheter, the second localization signal including a second quadrature component;
• comparing the first quadrature component to the second quadrature component;
• and
• detecting a localization element/sheath state change for at least one of the first localization element and the second localization element based upon the comparison of the first quadrature component to the second quadrature component.