基于颞骨冰冻切片数据集侧颅底区解剖结构三维重建

Three dimensional reconstruction of anatomical structures in later skull base based on sectional frozen slices dataset of temporal bone

目的探讨基于冰冻切片进行侧颅底精细结构三维重建的方法,完善中国数字人研究的内容。方法利用体绘制软件、颞骨冰冻切片数据集对颞骨及其内部精细结构进行三维重建。结果获取了颞骨内主要结构:听小骨,鼓膜张肌,面神经管,迷路,颈内动脉,乙状窦,后组脑神经,岩下窦,脑膜中动脉,三叉神经,小脑后下动脉,前庭水管,耳蜗水管的三维模型。以上结构既可单独显示,又能任意搭配显示、任意角度旋转切割,并可进行交互式浏览。结论基于颞骨冰冻切片能够实现侧颅底解剖结构的三维可视化。计算机技术与解剖学相结合的数字化技术为侧颅底解剖学习、侧颅底模拟手术演练提供了平台,对推动侧颅底外科的发展具有重要意义。

OBJECTIVE To discuss the methods for reconstruction of delicate structures in lateral skull base based on frozen slices and to enrich the visible human being research . METHODS Delicate structures of temporal bone were reconstructed using volume rending software and frozen slices database of one temporal bone. RESULTS Three-dimensional anatomical models of main temporal bone structures such as auditory ossicles, tensor tympanic muscle ,facial nerve, vestibule and cochlear, semicircular cannals, internal jugular artery, sigmoid sinus, posterior group cranial nerve, inferior petrosal sinus, middle meningeal artery, trigeminal nerve, posterior inferior cerebellar artery, vestibular aqueduct ,cochlear aqueduct were reconstructed. These structures can be displayed singly and grouply and be rotated and cut at any angle, interactive browsing can be realized. CONCLUSION Three-dimensional visualization of delicate structures in lateral skull base could be realized based on fresh frozen slices of temporal bone. Digitization techniques which combine computer technique and anatomy provides best platform for anatomical study and operative simulation and has great significance for advancing development of lateral skull base surgery.