Moss M L
Acta Morphol Neerl Scand. 1985;23(4):337-56.
It has been shown previously that all customary methods of analysis of craniofacial skeletal growth, closely based on the techniques of roentgenographic cephalometry, share common geometric and conceptual constraints that make all such descriptions reference frame dependent; i.e., these descriptions vary with each method of registrations and superimposition (stacking) of growth cross-sections (x-rays). The use of the concepts of continuum mechanics, and of the numerical techniques of the finite element method, permit a reference frame invariant tensor description of growth. An example of this method is provided by the analysis of the growth of the rat neurocranium and maxillary complex in the period 13-49 days of age. The finite element method should find wide application in the description of cephalic growth, in normal and pathological conditions.
先前已经表明，所有基于X线头影测量技术的颅面骨骼生长分析常用方法，都具有共同的几何和概念限制，这使得所有此类描述都依赖于参考框架；也就是说，这些描述会因生长横截面（X线片）的每种配准和叠加（堆叠）方法而有所不同。连续介质力学概念和有限元法数值技术的应用，允许对生长进行参考框架不变的张量描述。对13至49日龄大鼠脑颅和上颌复合体生长的分析提供了该方法的一个示例。有限元法在正常和病理条件下头颅生长的描述中应会有广泛应用。
