DETECTION OF LEAD ORIENTATION

摘要

Systems and methods for determining a rotational orientation of a lead for use in electrostimulation of a body tissue are disclosed. A system may receive image data of at least a portion of the lead including image data of a marker configured to identify a rotational orientation of the lead. The system may receive at least one template of the lead having a specified rotational orientation. Each template may include a reference data cube and a reference marker direction vector. The system may generate a target data cube of the marker using the image data of the marker, and register the reference data cube to the target data cube to produce a transformation operator. The system may estimate the rotational orientation of the lead using the reference marker direction vector and the determined transformation operator.

主权项

1. A system for determining a rotational orientation of a lead for use in electrostimulation of a body tissue, wherein the lead has a longitudinal lead axis and a marker configured to identify a rotational orientation about the longitudinal axis of the lead, the system comprising:
a data input circuit configured to receive image data of at least a portion of the lead including image data of the marker; a template receiver circuit configured to receive at least one template of the lead having a specified rotational orientation, the at least one template including (1) a reference data cube (XR) of the marker and (2) a reference marker direction vector (νR) indicative of the specified rotational orientation of the lead; a lead orientation estimator circuit, including:
a marker recognition circuit configured to produce a target data cube (XT) of the marker using the image data of the marker;a data registration circuit configured to register the reference data cube (XR) to the target data cube (XT) to produce a transformation operator (Φ) for transforming XR into a transformed reference data cube Φ(XR) that matches XT within a specified margin; andan estimator circuit configured to estimate the rotational orientation of the lead using the reference marker direction vector (νR) and the determined transformation operator (Φ); an output unit, configured to produce a graphical representation of the lead and at least the estimated target marker direction vector.