摘要
本文介绍了一种用于颅颌面硬组织三维形态分析的新方法。作者采用一台 X线摄影机分别拍摄头颅正、侧位定位片,选用72个标志点,借助YS—3100微机自动重构、测量、计算、显示颅颌面硬组织三维形态。初步选定的测量项目有四部分136项,颅颌面硬组织立体形态图具有能多方向观察、光滑、透视感强等特点。该方法能为颅颌面畸形的诊断及治疗预测提供直接依据。
The paper presents a new method for analysing 3-D morphology of cranio-facial hard- tissue. The lateral and posteroanterior cephalograms are taken respectively with only one X-ray tube and 72 landmarks are selected. 3-D morpoology of cranio-facial hard-tissue is automatically reconstructed, mea- sured, calculated and shown with microcomputer YS-3100. Four parts items consisting of 136 items are selected first and 3-D perspective curving illustrations may be rotated for viewing in all directions. The method will offer direct evidences for diagnosis and pretreatment simulation of cranio-focial malfo- rmation.
出处
《中国医疗器械杂志》
CAS
1991年第2期72-75,共4页
Chinese Journal of Medical Instrumentation
