Three-dimensional reconstruction of the temporal bone: Comparison of in situ, CT, and CBCT measurements
Three-dimensional reconstruction of the temporal bone: Comparison of in situ, CT, and CBCT measurements
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DOI：
10.1016/j.anorl.2018.08.013
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发表时间：
2018-12-01
影响因子：
2.5
通讯作者：
Marianowski, R.
中科院分区：
文献类型：
--
作者：
Guyader, E.;Savean, J.;Marianowski, R.
目的：目的：评价人颞骨三维（3D）锥形束计算机断层扫描（CBCT）和计算机断层扫描（CT）重建的准确性，并与原位测量结果进行比较。使用Wilcoxon检验比较在原位测量的每个颞骨上的8个距离，然后在3D CT和CBCT重建上测量。使用了六个标志：外耳道（EAC）、乳突尖、枕骨尖、乳突瘤、乳突尖上方1 cm处（TO）结果：3种测量方法的测量结果均无显著性差异（P > 0. 05结论：CBCT是一种新的影像学检查方法，能提供与CT同样可靠的颞骨三维重建图像。由于与CT相比具有更好的空间分辨率，CBCT与显著更低的辐射剂量相关。该技术构成了形态学的进步，因为CBCT与CT相当，允许以较低的辐射剂量研究病变耳。(C)2018年Elsevier Masson SAS。All rights reserved.
Objective: To evaluate the accuracy of three-dimensional (3D) Cone Beam Computed Tomography (CBCT) and Computed Tomography (CT) reconstructions of human temporal bones compared with in situ measurements.Material and methods: Experimental anatomical study of 10 human temporal bones. Wilcoxon's test was used to compare 8 distances on each temporal bone measured in situ and then on 3D CT and CBCT reconstructions. Six landmarks were used: external auditory canal (EAC), tip of the mastoid process, tip of the occiput, zygoma, a point situated 1 cm above the tip of the mastoid process (TO) (open technique: lower limit of the mastoidectomy), head of stapes.Results: No significant difference was observed between the 3 measuring techniques for any of the distances studied (P > 0.05).Discussion: This study demonstrates the equivalence of CBCT and CT for temporal bone measurements.Conclusion: CBCT is a new imaging modality providing 3D reconstructions of the temporal bone that are as reliable as those obtained by CT. As a result of better spatial resolution compared to CT, CBCT is associated with a significantly lower radiation dose. This technique constitutes a morphological progress, as CBCT is comparable to CT, allowing investigation of pathological ears with a lower radiation dose. (C) 2018 Elsevier Masson SAS. All rights reserved.