PC机上基于CT、MRI图像构建的颌面部三维数字模型

摘要

BACKGROUND:Recently, scholars al over the world have made numerous studies on three-dimensional visualization model of reconstructing maxil ofacial bone tissue, skin, and muscle in the ordinary PC. However, few studies concerned the three-dimensional visualization model of constructing maxil ofacial bone tissue, skin, muscle and blood vessels. OBJECTIVE:To establish a three-dimensional visualization model of the complete maxil ofacial region using an ordinary PC based on spiral CT, MRI data, and three-dimensional reconstruction software. METHODS:One healthy male adult was chosen as the object in this study. CT and MRI were performed respectively to acquire the DICOM standardized image of the sample. Al CT and MRI images were imported to Mimics to construct three-dimensional visualization models of the bones in the maxil ofacial region, some masseter muscles, trigeminal cistern, internal carotid artery and internal jugular vein. Three-dimensional model of the bones in the maxil ofacial region was chosen as the reference. Models of muscles, blood vessels and trigeminal cistern established by MRI images were imported, and registration in space of three-dimensional model was performed. At last, three-dimensional visualization model of the complete maxil ofacial region was acquired. RESULTS AND CONCLUSION:The integrated three-dimensional models of the bones, muscles, skin, trigeminal cistern and blood vessels in the maxil ofacial region established accurately reflected the complex anatomic structure of maxil ofacial region, provided reliable anatomic data for clinical diagnosis and laid a good foundation for sham operations in the future.%背景：近年来国内外学者对个人 PC 机上重建颌面部骨组织、皮肤、肌肉三维可视化模型进行了大量研究，但对于建立颌面部骨骼、皮肤、肌肉、血管的整体三维可视化模型尚无报道。目的：利用螺旋 CT、MRI 数据及三维重建软件，在普通 PC 机建立颌面部整体的三维可视化模型。方法：选择1名健康成年男性作为建模对象，分别通过螺旋CT、核磁共振扫描，得到样本的DICOM标准图像。将所有CT、MRI图像导入Mimics，建立颌面部骨骼、部分咀嚼肌、三叉神经池、颈内动脉、颈内静脉的三维可视化模型。选择颌面部骨骼三维模型为基准，将由MRI图像建立的肌肉、血管、三叉神经池模型导入，进行三维模型空间配准。最终得到颌面部整体的三维可视化模型。结果与结论：成功建立了颌面部骨骼、肌肉、皮肤、三叉神经池、血管的整体三维模型，准确反映了颌面部复杂的解剖结构，可为临床诊断提供可靠的解剖资料，并为今后的模拟手术打下良好的基础。