Like any organ in children, the ear has particular anatomical features that are well shown in imaging. The petrous bone computed tomography (CT) is a valuable tool for diagnosing ear pathologies and evaluating surgica...Like any organ in children, the ear has particular anatomical features that are well shown in imaging. The petrous bone computed tomography (CT) is a valuable tool for diagnosing ear pathologies and evaluating surgical possibilities. In children, the ear has the peculiarity of having the morphology and size of adults, and the only difference resides in the components of the middle and inner ear related to the growth of the temporal bone and the state of ossification which are progressive with age. Some aspects of growth can simulate pathology and must be known. The pneumatisation of the temporal bone occurs gradually after birth and in several outbreaks until adulthood. The external auditory canal, the internal auditory meatus and the petromastoid canal progressively reach the adult aspect because of the growth of the petrous bone. This work aims to highlight the particularities of the petrous bone CT in pediatrics, since it has become widely used in the exploration of malformations, trauma, infectious complications of the ear and in the assessment of deafness.展开更多
目的研究个体化三维数字模型(three-dimension digital manikin,3D-DM)在内镜经鼻颞骨岩部解剖中的应用,探讨其临床应用价值。方法 10例(20侧)成人头部标本灌注后经CT扫描,将图像导入3Dview软件,重建出个体化3D-DM,运用"逆向骨窗形...目的研究个体化三维数字模型(three-dimension digital manikin,3D-DM)在内镜经鼻颞骨岩部解剖中的应用,探讨其临床应用价值。方法 10例(20侧)成人头部标本灌注后经CT扫描,将图像导入3Dview软件,重建出个体化3D-DM,运用"逆向骨窗形成"技术设计并模拟颞骨岩部骨窗形成。然后在3D-DM辅助下对颞骨岩部进行内镜解剖,对头部标本解剖与个体化3D-DM视野及相关测量进行比较。结果通过逆向骨窗形成技术可术前模拟颞骨岩部磨除,头部标本解剖与个体化3D-DM下视野高度一致,相关测量间比较无统计学差异。结论个体化3D-DM为内镜下经鼻入路暴露颞骨岩部提供详尽解剖数据,可以术前模拟颞骨岩部磨除,提高术中颞骨岩部磨除的准确性和安全性,对该手术入路的临床应用具重要指导意义。展开更多
文摘Like any organ in children, the ear has particular anatomical features that are well shown in imaging. The petrous bone computed tomography (CT) is a valuable tool for diagnosing ear pathologies and evaluating surgical possibilities. In children, the ear has the peculiarity of having the morphology and size of adults, and the only difference resides in the components of the middle and inner ear related to the growth of the temporal bone and the state of ossification which are progressive with age. Some aspects of growth can simulate pathology and must be known. The pneumatisation of the temporal bone occurs gradually after birth and in several outbreaks until adulthood. The external auditory canal, the internal auditory meatus and the petromastoid canal progressively reach the adult aspect because of the growth of the petrous bone. This work aims to highlight the particularities of the petrous bone CT in pediatrics, since it has become widely used in the exploration of malformations, trauma, infectious complications of the ear and in the assessment of deafness.
文摘目的研究个体化三维数字模型(three-dimension digital manikin,3D-DM)在内镜经鼻颞骨岩部解剖中的应用,探讨其临床应用价值。方法 10例(20侧)成人头部标本灌注后经CT扫描,将图像导入3Dview软件,重建出个体化3D-DM,运用"逆向骨窗形成"技术设计并模拟颞骨岩部骨窗形成。然后在3D-DM辅助下对颞骨岩部进行内镜解剖,对头部标本解剖与个体化3D-DM视野及相关测量进行比较。结果通过逆向骨窗形成技术可术前模拟颞骨岩部磨除,头部标本解剖与个体化3D-DM下视野高度一致,相关测量间比较无统计学差异。结论个体化3D-DM为内镜下经鼻入路暴露颞骨岩部提供详尽解剖数据,可以术前模拟颞骨岩部磨除,提高术中颞骨岩部磨除的准确性和安全性,对该手术入路的临床应用具重要指导意义。