关键词:
头影测量,
X线,
三维成像,
自动定点,
锥形束计算机断层扫描
Abstract:
Cephalometry is an indispensable measurement of orthodontic and orthognathic diagnosis and treatment. With the development of computer-aided technology, automatic landmarking of cephalometry has been achieved in two-dimensional cephalometry with high precision, which greatly reduces the workload of operators. However, without geome-tric distortion, tissue overlap, and other defects, the cone beam computed tomography images can accurately locate the anatomical landmarks of cephalometric analysis. This analysis is helpful for the diagnosis and analysis of congenital or deve-lopmental craniomaxillofacial asymmetry. Nowadays, the automatic landmarking of three-dimensional cephalometry is an important research direction in the field of cephalometry. Based on the classification of different automatic fixed-point methods, this study reviews the progress of two- and three-dimensional cephalometric automatic landmarking. Furthermore, the study discusses the accuracy of different automatic landmarking methods and proposes future research directions.
Key words:
cephalometry,
X-ray,
three-dimensional imaging,
automatic landmarking,
cone beam computed tomography