颞下窝的冠状断层解剖学研究

Anatomical study of infratemporal fossa in coronal sections

目的 研究颞下窝的局部解剖特点,为临床医生提供立体、形象的解剖学资料.方法 应用冷冻铣切技术,完成一成人头颅断层标本的制作,通过计算机对头颅冠状薄层连续切片进行信号标定、提取和三维重建,获得颞下窝内有关结构的三维图像.结果 共获得396张颞下窝区的0.1 mm厚冠状断层,选取6个典型断层,描述了颞下窝的解剖特点.颞下窝的三维图像形态逼真,可以任意旋转、缩放、任意拆分和合并.结论 冠状断层解剖和三维重建相结合形象显示颞下窝的立体解剖关系,翼外肌和翼内肌是该区域的标志性解剖结构;三维重建图像可增加临床医生对颞下窝解剖关系的理解,可以作为手术入路选择的依据和模拟手术过程的工具.

Objective The study aims to provide three-dimensional anatomical data to physicians through studying the regional anatomy of infratemporal fossa.Methods Coronal sections of one cadaveric head were prepared with freezing milling technique.After labeling,extraction and reconstruction of the serial thin sections of the specimen,the three dimensional images of the infratemporal fossa and related structures were obtained.Methods Three hundred and ninety-six coronal sections with the thickness of 0.1 mm were obtained.Six typical sections were selected to depict the anatomical features of infratemporal fossa.The three-dimensional images of infratemporal fossa were vivid and could be rotated,zoomed out,divided and merged at will.Conclusion The combination of coronal sections and three-dimensional reconstruction could display the anatomical relationship of infratemporal fossa structures.Pterygoid muscles are landmarks of the region.Three -dimensional reconstructed images could help physicians in the understanding of anatomical relationship of infratemporal fossa structures and be the basis of surgical approach decision and useful tool in simulating the surgical procedures.