A thoracic 3d model pool was established , composed of main structures including thyroid cartilage , criocoid cartilage , arytenoids cartilage , trachea , esophagus , main branches of great arteries and veins , sternal stem , clavicle , lungs and bronchi , and heart . the components could also classified into 2 categories , i . e . contour labels with two different solving powers , and surface models of main organs and the chest itself . the models could be showed in several ways 包括甲状解全学夕居戈j软骨、环状软骨、构状软骨、气管、食管、大动脉和大静脉的主要分支及属支、胸骨柄、锁骨、肺和支气管及心脏等主要胸部和颈部结构,该模型库包括两种水平分辨率的器官轮廓,以及胸部各主要脏器的表面模型、胸部的整体模型,可以多种方式进行展示。