锥形束计算机断层扫描（CBCT）数据集中钛种植体周围骨测量的准确性：小型猪放射学与组织学结果的比较
Accuracy of Bone Measurements in the Vicinity of Titanium Implants in CBCT Data Sets: A Comparison of Radiological and Histological Findings in Minipigs.
作者信息
Gröbe Alexander, Semmusch Jan, Schöllchen Maximilian, Hanken Henning, Hahn Michael, Eichhorn Wolfgang, Schön Gerhard, Jung Ole, Stein Jamal M, Reitmeier Aline, Heiland Max, Smeets Ralf, Precht Clarissa
机构信息
Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestraße 59, 22529 Hamburg, Germany.
出版信息
Biomed Res Int. 2017;2017:3848207. doi: 10.1155/2017/3848207. Epub 2017 Jul 17.
PURPOSE
The aim of this animal study was the determination of accuracy of bone measurements in CBCT (cone-beam computed tomography) in close proximity to titanium implants.
MATERIAL AND METHODS
Titanium implants were inserted in eight Göttingen minipigs. 60 implants were evaluated histologically in ground section specimen and radiologically in CBCT in regard to thickness of the buccal bone. With random intercept models, the difference of histologic measurements and CBCT measurements of bone thickness was calculated.
RESULTS
The mean histological thickness of the buccal bone was 5.09 mm (CI 4.11-6.08 mm). The four raters measured slightly less bone in CBCT than it was found in histology. The random effect was not significant ( value 1.000). Therefore, the Intraclass Correlation Coefficient (ICC) was 98.65% (CI 100.00-96.99%).
CONCLUSION
CBCT is an accurate technique to measure even thin bone structures in the vicinity of titanium implants.
目的
本动物研究的目的是确定锥形束计算机断层扫描（CBCT）在紧邻钛种植体处进行骨测量的准确性。
材料与方法
在8只哥廷根小型猪中植入钛种植体。对60个种植体的颊侧骨厚度进行组织学评估（磨片标本）和CBCT影像学评估。采用随机截距模型计算骨厚度的组织学测量值与CBCT测量值之间的差异。
结果
颊侧骨的平均组织学厚度为5.09毫米（置信区间4.11 - 6.08毫米）。四位评估者在CBCT上测量的骨量略少于组织学测量值。随机效应不显著（值为1.000）。因此，组内相关系数（ICC）为98.65%（置信区间100.00 - 96.99%）。
结论
CBCT是一种准确的技术，即使对于钛种植体附近的薄骨结构也能进行测量。
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