Three-dimensional quantification of mandibular asymmetry through cone-beam computerized tomography.
Three-dimensional quantification of mandibular asymmetry through cone-beam computerized tomography.
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DOI：
10.1016/j.tripleo.2011.02.002
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发表时间：
2011-06
期刊：
影响因子：
--
通讯作者：
Rossouw PE
中科院分区：
文献类型：
--
作者：
Cevidanes LH;Alhadidi A;Paniagua B;Styner M;Ludlow J;Mol A;Turvey T;Proffit WR;Rossouw PE
为了确定三维形状分析是否能准确诊断下颌不对称患者的左右差异，对20例下颌不对称患者进行预处理，获取锥束CT数据。三维形状分析用于定位和量化虚拟模拟不对称的程度。采用两种方法：(1)在地标确定的中矢状面进行镜像；(2)在任意平面上进行镜像，然后在原始图像的颅底进行配准。本研究采用模拟数据进行验证，并应用于三个临床病例。对于中矢状面镜像，测量和模拟的不对称性之间的差异小于0.5 mm的概率为bb0 99%。对于颅底配准的镜像，差异小于0.5 mm的概率为bb0.84%。两种镜像方法都可以精确地量化下颌不对称。颅底定位有可能用于有创伤情况或关键标志不可靠或缺失的患者。
To determine if 3D shape analysis precisely diagnoses right and left differences in asymmetry patients Cone-beam CT data was acquired pretreatment from 20 patients with mandibular asymmetry. 3D shape analysis was used to localize and quantify the extent of virtually simulated asymmetry. Two approaches were used: (1) mirroring on the midsagittal plane determined from landmarks and (2) mirroring on an arbitrary plane, then registering on the cranial base of the original image. The validation presented in this study used simulated data and has been applied to three clinical cases. For mirroring on the midsagittal plane there was a >99% probability that the difference between measured and simulated asymmetry was less than 0.5 mm. For mirroring with cranial base registration, there was a >84% probability of differences less than 0.5 mm. Mandibular asymmetry can be precisely quantified with both mirroring methods. Cranial base registration has the potential to be used for patients with trauma situations or when key landmarks are unreliable or absent.
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DOI：
10.1109/titb.2006.884372
发表时间：
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影响因子：
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作者：
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影响因子：
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作者：
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