General Electric Company

Candela Corporation

Lewis Levine

Michael Clancy

Douglas Karl Johnson

A self calibrating irradiation system is provided. The system includes sources for providing a calibration beam and a radiation beam, one or more detectors and a processor. A method of calibrating an irradiation system is also provided. The method includes measuring the energy of a calibration beam and periodically updating a transmission value of the laser system based on a calibration factor and the energy of the calibration beam.

Self calibrating irradiation system

Certain embodiments of the present invention provide a method and system for improved registration of image and navigation references used in image-guided operations. Certain embodiments of the system include an image acquisition device for obtaining at least one image of an object, a first calibration fixture positioned in relation to the image acquisition device, and a second calibration fixture positioned in relation to the object. The position data from first calibration fixture is used to form a characterization of the image acquisition device, which is corrected by position data from the second calibration fixture. In an embodiment, a first calibration fixture is affixed to a C-arm camera and a smaller second calibration fixture is affixed to a patient. Data from the first and second calibration fixtures is used with tracking data to calibrate the image acquisition data and register reference points in image and navigation reference frames.

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Weston, MA, United States of America

Lewis Levine