Use of microcomputed tomography scanning as a new technique for the evaluation of membranous bone

The Journal of Craniofacial Surgery
S R BuchmanS A Goldstein

Abstract

Previous basic bone studies in cranial bone biology and bone grafting have used calipers, volume displacement, and cephalometric tracings to measure membranous bone and to infer fundamental properties of cranial bone. These tools have limited accuracy and reproducibility. Histomorphometry has also been used in the quantitative analysis of cranial bone; however, two-dimensional histology is unable to capture a precise representation of the three-dimensional structure of bone. For the first time, we have used the advanced technology of three-dimensional microcomputed tomographic (micro-CT) scanning as a highly accurate and automated tool to precisely measure changes in bone stereology, volume and projection, and microarchitecture in the evaluation of membranous bone. The advantages of this technology are numerous and include the rapid and nondestructive three-dimensional analysis of bone microstructure at resolutions between 10 and 75 microns. Measures of "connectivity" in three dimensions and the architectural parameter of "anisotropy" are available through micro-CT imaging but can only be inferred through two-dimensional histological series. We successfully imaged two full-thickness cranial bone specimens and one cancellous ili...Continue Reading

Citations

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