In addition, CT virtual laryngoscopy revealed the structure of subglottic region and distal portion of strictured airway from feet to head, which were not available in actual laryngoscopy.

• 显示喉内病变的位置、范围与纤维喉镜所见类似，还可从足端入路观察到喉镜所看不到的狭窄远端和声门下区情况。