评估不同骨类型中用于牙种植学的超声传播速度和三维放射学：一项比较的离体研究。
Evaluation of ultrasound transmission velocity and 3-dimensional radiology in different bone types for dental implantology: a comparative ex vivo study.
机构信息
Department of Oral, Maxillofacial and Plastic Surgery, University Medical Center of Johannes Gutenberg University, Mainz, Germany.
出版信息
Oral Surg Oral Med Oral Pathol Oral Radiol. 2013 Aug;116(2):e77-84. doi: 10.1016/j.oooo.2011.11.028. Epub 2012 Jul 3.
OBJECTIVE
To evaluate ultrasound transmission velocity (UTV) for assessment of mechanical bone quality, an ex vivo comparison of different bone types measured with UTV, 2-dimensional (2D) histomorphometry and with 3-dimensional (3D) radiology (cone-beam computerized tomography [CBCT], computerized microtomography [μCT]) was conducted.
STUDY DESIGN
Clinical cortical, cancellous, and mixed bone (each n = 6) was measured via UTV (m/s), CBCT (white pixel/black pixel ratio [WP/BP]), μCT (bone volume/total volume [μBV/TV]), and histomorphometry (bone volume/total volume [hBV/TV]). UTV values were correlated with 2D-histomorphometry and 3D-radiologic results.
RESULTS
For the cortical, cancellous, and mixed bone samples, respectively, UTV values were 1,945.17, 1,266.9,and 1472.2 m/s, WP/BP quotients were 0.96, 0.15, and 0.33, μBV/TV quotients were 0.94, 0.2, and 0.47, and hBV/TV quotients were 0.96, 0.24 and 0.39. Significant correlations between UTV and the other methods were seen (P < .0001).
CONCLUSIONS
Similar to the other methods, UTV is able to discriminate between different bone types ex vivo.
目的
评估超声传播速度（UTV）在评估机械骨质量方面的作用，对不同骨类型进行体外比较，分别采用 UTV、二维（2D）组织形态计量学和三维（3D）放射学（锥形束计算机断层扫描 [CBCT]、计算机微断层扫描 [μCT]）进行测量。
研究设计
通过 UTV（m/s）、CBCT（白像素/黑像素比值 [WP/BP]）、μCT（骨体积/总体积 [μBV/TV]）和组织形态计量学（骨体积/总体积 [hBV/TV]）对临床皮质骨、松质骨和混合骨（每组 n = 6）进行测量。将 UTV 值与 2D 组织形态计量学和 3D 放射学结果进行相关性分析。
结果
分别为皮质骨、松质骨和混合骨样本的 UTV 值为 1945.17、1266.9 和 1472.2 m/s，WP/BP 比值为 0.96、0.15 和 0.33，μBV/TV 比值为 0.94、0.20 和 0.47，hBV/TV 比值为 0.96、0.24 和 0.39。UTV 与其他方法之间存在显著相关性（P <.0001）。
结论
与其他方法一样，UTV 能够在体外区分不同的骨类型。
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