Image analysis – Applications – Biomedical applications
Reexamination Certificate
2002-05-30
2008-11-25
Carter, Aaron W (Department: 2624)
Image analysis
Applications
Biomedical applications
C382S103000, C128S922000, C348S066000, C433S029000
Reexamination Certificate
active
07457443
ABSTRACT:
A method for correcting inherent distortions in a CT or MRI imaging process, or distortions arising from excessive patient movement during the scan by means of a registration device inserted into the mouth of the patient at the time the scan is being performed. The registration device incorporates a set of fiducial markers disposed in a predetermined three-dimensional pattern. The exact positions of the fiducial markers are known with respect to each other, thus providing a three-dimensional reference against which the resulting images can be compared. Additionally, a method whereby three-dimensional CT or MRI images taken prior to an operation, are accurately registered and integrated with real-time tracking positional data of the patient's body part and instruments operating thereon. Application is described for the drilling of a patient's jaw for the placement of dental implants.
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Carter Aaron W
Husch Blackwell Sanders LLP
Image Navigation Ltd.
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