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A Simple Method of Cortical Bone Thickness Evaluation based on Radiographic Images for Osteoporosis Investigation

In the paper a method of automatic extraction of cortical bone based on dental panoramic radiographs is described. The method is intended for use as the first contact tool in osteoporosis population screening. Its components have very low computational complexity, and can be found in every image processing software package. The upper and lower boundaries of mandibular cortical bone have been determined in a series of panoramic images, and results have been evaluated by a radiologist. The technique works either very precisely, or clearly wrong (for heavily cluttered images), which proves its usefulness for an untrained user.