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目的 明确颈深筋膜的分层及筋膜间隙的位置、毗邻 ,为颈深筋膜间隙的影像识别与分析提供参考 ,为临床诊治感染蔓延、肿瘤侵润提供解剖学依据。 方法 采用低温冰冻和生物塑化技术用 17例标本 ,制作了颈部连续薄层横断面 ,对颈深筋膜及筋膜间隙进行了观测。从颈部薄层塑化断面标本上 ,用双线提取间隙轮廓的方法 ,在SGI工作站上对颈深筋膜间隙进行三维重建。 结果 1.颈深筋膜应分为四层 ,颈深筋膜深层分为翼筋膜和椎前筋膜 ,颈深筋膜各层均参与颈动脉鞘的形成。 2 .颈动脉间隙是一开放的间隙 ,其后外侧与颈后间隙相通 ;证实了危险间隙的存在。 3.重建出咽后间隙、颈动脉间隙和内脏间隙的三维图像 ,并能同时显示间隙内的主要结构。结论 得出了颈深筋膜和筋膜间隙的模式图 ,并为筋膜间隙的三维重建提供了一种新的方法。
Objective To clarify the location of the fascia of cervical and deep fascia and the location of the interfacial space adjacent to provide a reference for the image recognition and analysis of the cervical fascia and the space to provide an anatomical basis for clinical diagnosis and treatment of infection and tumor invasion. Methods Seventeen specimens were made by cryogenic freezing and bioplastics technology. The transverse thin section of the neck was made and the space between the cervical fascia and fascia was observed. Three-dimensional reconstructions of the cervical fascia gap were performed on the SGI workstation from the thin plasticized cross-section of the neck using a two-wire extraction of the contour of the gap. The cervical fascia should be divided into four layers. The deep fascia is divided into the wing fascia and the anterior fascia. The layers of the cervical fascia are involved in the formation of the carotid sheath. 2. The carotid artery gap is an open gap, and then the lateral side communicates with the posterior neck gap; this confirms the existence of a dangerous gap. Reconstruct three-dimensional images of the posterior pharyngeal space, carotid arteries and visceral space, and simultaneously display the main structures in the interspace. Conclusions The model of cervical deep fascia and fascia gap was obtained, and a new method for three-dimensional reconstruction of fascia gap was provided.