Kim Jo-Eun, Yi Won-Jin, Heo Min-Suk, Lee Sam-Sun, Choi Soon-Chul, Huh Kyung-Hoe
Lecturer, Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.
Professor, Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.
Oral Surg Oral Med Oral Pathol Oral Radiol. 2015 Dec;120(6):762-70. doi: 10.1016/j.oooo.2015.08.022. Epub 2015 Sep 9.
To evaluate the potential feasibility of cone beam computed tomography (CBCT) in the assessment of trabecular bone microarchitecture.
Sixty-eight specimens from four pairs of human jaw were scanned using both micro-computed tomography (micro-CT) of 19.37-μm voxel size and CBCT of 100-μm voxel size. The correlation of 3-dimensional parameters between CBCT and micro-CT was evaluated.
All parameters, except bone-specific surface and trabecular thickness, showed linear correlations between the 2 imaging modalities (P < .05). Among the parameters, bone volume, percent bone volume, trabecular separation, and degree of anisotropy (DA) of CBCT images showed strong correlations with those of micro-CT images. DA showed the strongest correlation (r = 0.693).
Most microarchitectural parameters from CBCT were correlated with those from micro-CT. Some microarchitectural parameters, especially DA, could be used as strong predictors of bone quality in the human jaw.
评估锥形束计算机断层扫描（CBCT）在评估小梁骨微结构方面的潜在可行性。
使用体素大小为19.37μm的微型计算机断层扫描（micro-CT）和体素大小为100μm的CBCT对来自四对人类颌骨的68个标本进行扫描。评估CBCT和micro-CT之间三维参数的相关性。
除骨特异性表面积和小梁厚度外，所有参数在两种成像方式之间均显示出线性相关性（P <.05）。在这些参数中，CBCT图像的骨体积、骨体积百分比、小梁间距和各向异性程度（DA）与micro-CT图像的这些参数显示出强相关性。DA显示出最强的相关性（r = 0.693）。
CBCT的大多数微结构参数与micro-CT的参数相关。一些微结构参数，尤其是DA，可作为人类颌骨骨质量的强预测指标。
