Registration method and apparatus for navigation-guided...

Details Registration method and apparatus for navigation-guided... Registration method and apparatus for navigation-guided...

2005-08-23

2005-08-23

Glick, Edward J. (Department: 2882)

X-ray or gamma ray systems or devices

Accessory

Testing or calibration

C378S162000, C250S252100

Reexamination Certificate

active

06932506

ABSTRACT:
A registration method and an apparatus for navigation-guided interventions employing an X-ray device and a position acquisition system and avoid the use of patient-associated markers. By means of a defined arrangement of a carrying arm proceeding from a support mount at the X-ray device and a defined arrangement of an X-ray calibration phantom at the carrying arm, the coordinate transformation between a coordinate system allocated to the support mount and a coordinate system allocated to the X-ray calibration phantom is known. On the basis of the acquisition and evaluation of 2D projections of the X-ray calibration phantom with the X-ray device, a coordinate transformation between the coordinate system allocated to the support mount and a coordinate system allocated to a measurement volume of the X-ray device is produced. By arranging a device detectable by the position acquisition system at the support mount, a coordinate transformation between the coordinate system allocated to the measurement volume and a coordinate system allocated to the calibration phantom is determined for the navigation.

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patent: OS 199 17 8673 (2000-11-01), None

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