THE 3-DIMENSIONAL CEPHALOGRAM - THEORY, TECHNIQUE, AND CLINICAL-APPLICATION
THE 3-DIMENSIONAL CEPHALOGRAM - THEORY, TECHNIQUE, AND CLINICAL-APPLICATION
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DOI：
10.1016/0889-5406(88)90058-3
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发表时间：
1988-10-01
影响因子：
3
通讯作者：
MCCARTHY, JG
中科院分区：
文献类型：
--
作者：
GRAYSON, B;CUTTING, C;MCCARTHY, JG
布罗德-博尔顿头固定器产生关于颅骨农场的内在三维信息。然而，在临床上，这些信息主要用于侧位或后前位头颅X线片的单独研究中。在这篇文章中，我们展示了一个权宜之计，使用现有的基于头孢菌素的数据集，以获得某些分析的三维形式。该技术基本上与Broadcast-Bolton“定向器”相同，后者利用了头部固定器的几何形状来模拟立体摄影测量。三维方法支持通常的生物特征的地标位置，并利用规范的数据库，是适合半自动分析的症状数据。该方法的主要缺点是它不能在三维空间中表示曲线形状。然而，与计算机断层扫描（CT）相比，它涉及低辐射剂量，更容易获得，有一个可用的规范性数据库，更实用的定量或长期系列分析。
The Broadbent-Bolton cephalostat produces intrinsically three-dimensional information about cranial farm. Yet in the clinical setting, this information has been used primarily two dimensions at a time in the separate study of lateral or posteroanterior cephalograms. In this article we demonstrate an expedient use of existing cephalostat-based data sets to derive certain analyses of three-dimensional form. The technique is essentially the same as that of the Broadbent-Bolton "Orientator," an exploitation of the geometry of the cephalostat to simulate stereophotogrammetry. The three-dimensional method supports the usual biometrics of landmark locations, and takes advantage of a normative data base that is suited for semiautomatic analysis of syndromic data. The principal drawback of the method is its inability to represent curving form in three dimensions. However, in comparison with computed tomography (CT), it involves low radiation dose, is simpler to obtain, has an available normative data base, and is more practical for quantitative or long-term serial analysis.