AUTOMATIC DETERMINATION OF CEPHALOMETRIC POINTS IN A THREE-DIMENSIONAL IMAGE
First Claim
1. A method of determining cephalometric points, the method comprising the steps of:
- generating a three-dimensional image;
determining a plurality of contours;
displaying the plurality of contours on the three-dimensional image;
automatically calculating a plurality of cephalometric points; and
displaying the plurality of cephalometric points on the three-dimensional image.
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Accused Products
Abstract
A CT scanner generates a three-dimensional CT image that is used to construct a ceph image. The computer automatically outlines various parts of the patient to automatically locate points and/or contours that are displayed on the three-dimensional image. The computer also automatically calculates a plurality of cephalometric points that are displayed on the three-dimensional CT image. Once the contours and the ceph points located, the computer determines angles between certain ceph points and/or the contours and compares the angles to stored standard angles. This provides an objective standard for assessing the appearance of the patient and can be used as a guideline in planning any procedure that may affect the appearance of the patient.
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Citations
22 Claims
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1. A method of determining cephalometric points, the method comprising the steps of:
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generating a three-dimensional image; determining a plurality of contours; displaying the plurality of contours on the three-dimensional image; automatically calculating a plurality of cephalometric points; and displaying the plurality of cephalometric points on the three-dimensional image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of determining cephalometric points, the method comprising the steps of:
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generating a three-dimensional CT image; determining a plurality of contours; displaying the plurality of contours on the three-dimensional image; automatically calculating a plurality of cephalometric points; displaying the plurality of cephalometric points on the three-dimensional image; reviewing the plurality of contours and the plurality of cephalometric points on the three-dimensional image; and planning a procedure based on the step of reviewing. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A CT scanner comprising:
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an x-ray source to generate x-rays; an x-ray detector mounted opposite the x-ray source; and a computer that generates a three-dimensional image of a patient, wherein the computer determines a plurality of contours, displays the plurality of contours on the three-dimensional image, automatically calculates a plurality of cephalometric points and displays the plurality of cephalometric points on the three-dimensional image. - View Dependent Claims (21, 22)
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Specification