AUTOMATIC DETERMINATION OF CEPHALOMETRIC POINTS IN A THREE-DIMENSIONAL IMAGE

摘要

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.