Method and system for dynamic referencing and registration used with surgical and interventional procedures
AssigneeGeneral Electric Company
InventorsKaustubh Ravindra Nagarkar, Daniel Eduardo Groszmann
Life of this patent
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Abstract
A medical reference and registration system includes a substrate configured for placement on an external surface of a patient such that the substrate conforms to and moves with the external surface of the patient. The medical reference and registration system also includes multiple integrated sensor-fiducial marker devices mounted on the substrate. Each integrated sensor-fiducial marker device includes a sensor and at least one fiducial marker coupled to the sensor. Each sensor is pre-aligned with respect to the at least one fiducial marker so that a location of each fiducial marker is known with respect to its respective sensor.
Claims25
A medical reference system comprising:
- a substrate configured for placement on an external surface of a patient such that the substrate conforms to and moves with the external surface of the patient;
- and
- a plurality of integrated sensor-fiducial marker devices mounted on the substrate, wherein each integrated sensor-fiducial marker device comprises:
- a sensor;
- and
- at least one fiducial marker coupled to the sensor, wherein each sensor is pre-aligned with respect to the at least one fiducial marker so that a location of each fiducial marker is known with respect to its respective sensor.
A medical reference system comprising:
- a substrate configured for placement on an external surface of a patient such that the substrate conforms to and moves with the external surface of the patient;
- and
- a plurality of integrated sensor-fiducial marker devices mounted on the substrate, wherein each integrated sensor-fiducial marker device comprises:
- a magnetoresistance sensor;
- and
- at least one fiducial marker coupled to the magnetoresistance sensor, wherein the magnetoresistance sensor is configured to measure a position of the respective integrated sensor-fiducial marker device along x, y, and z coordinates.
A method for dynamic referencing and registration of patient images comprising the acts of:
- generating one or more images or volumetric representations based on image data acquired using an imaging system, wherein at least three fiducial markers of at least one integrated sensor-fiducial marker device are visible within the one or more images or volumetric representations, and the at least one integrated sensor-fiducial marker comprises a magnetoresistance sensor and the at least three fiducial markers coupled to the magnetoresistance sensor;
- distinguishing the fiducial markers within the one or more images or volumetric representations based on an overall pattern of the fiducial markers or distinctive geometry of each fiducial marker;
- generating a first set of position data for the magnetoresistance sensor of the at least one integrated sensor-fiducial marker device to determine a position of each of the at least three fiducial markers;
- generating a second set of position data for the at least three fiducial markers based solely on their location in the one or more images or volumetric representations having the visible fiducial markers;
- and
- registering the second set of position data of the last least three fiducial markers referencing the one or more images or volumetric representations with the first set of position data of the at least three fiducial markers.
Dependencies are inferred from the claim text.