一项关于通过三维计算机断层扫描对颅面形态进行新分析的提议。
A proposal for a new analysis of craniofacial morphology by 3-dimensional computed tomography.
作者信息
Park Sun-Hyung, Yu Hyung-Seog, Kim Kee-Deog, Lee Kee-Joon, Baik Hyoung-Seon
机构信息
College of Dentistry, Yonsei University, Seoul, South Korea.
出版信息
Am J Orthod Dentofacial Orthop. 2006 May;129(5):600.e23-34. doi: 10.1016/j.ajodo.2005.11.032.
INTRODUCTION
Three-dimensional (3D) analysis is essential for making a precise diagnosis of craniofacial morphology. Two-dimensional (2D) x-ray films are used to understand 3D structures. However, 2D images have several limitations. This article proposes a new type of cephalometric analysis by using 3D computed tomography.
METHODS
Axial images of 30 subjects (16 men; mean age, 19.2 years; 14 women, mean age, 20.5 years) were reconstructed into 3D models by using Vworks 4.0 (Cybermed, Seoul, Korea). The 3D models were measured with Vsurgery (Cybermed). The zygoma, maxilla, mandible, and facial convexity were analyzed.
RESULTS
The measurements were compared with Korean normal averages, and no statistically significant differences were found. Landmark identification was reproducible.
CONCLUSIONS
Three-dimensional computed tomography can provide information for use in diagnosis and treatment planning.
引言
三维（3D）分析对于精确诊断颅面形态至关重要。二维（2D）X线片用于了解三维结构。然而，二维图像存在若干局限性。本文提出一种利用三维计算机断层扫描进行新型头影测量分析的方法。
方法
使用Vworks 4.0（韩国首尔的Cybermed公司）将30名受试者（16名男性，平均年龄19.2岁；14名女性，平均年龄20.5岁）的轴向图像重建为三维模型。使用Vsurgery（Cybermed）对三维模型进行测量。分析了颧骨、上颌骨、下颌骨和面部凸度。
结果
将测量结果与韩国正常平均值进行比较，未发现统计学上的显著差异。标志点识别具有可重复性。
结论
三维计算机断层扫描可为诊断和治疗计划提供信息。
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