Byrne A T, Walshe P, McShane D, Hamilton S
Department of Radiology, Adelaide and Meath Hospital, Dublin 24, Ireland.
Eur J Radiol. 2005 Oct;56(1):38-42. doi: 10.1016/j.ejrad.2005.02.006.
Computed tomographic virtual laryngoscopy is a non-invasive radiological technique that allows visualisation of intra-luminal surfaces by three-dimensional reconstruction of air/soft tissue interfaces. It is particularly useful when the patient cannot tolerate clinical examination, when infection, neoplasm or congenital defects compromise the lumen and for assessment of the sub-glottic region. We have performed virtual laryngoscopy on patients referred because of upper airway symptoms, and compared the findings with those at conventional laryngoscopy.
Axial scans were obtained using a Toshiba Xpress helical scanner. Virtual laryngoscopy was then performed on a workstation using Toshiba "Fly-thru" software and was completed within 5 min.
Pathology included vocal cord nodules, laryngeal cysts, Reinke's oedema, laryngeal neoplasms and leukoplakia.
Virtual laryngoscopy displays anatomical detail comparable to conventional endoscopy. Impassable obstructions are no hindrance and all viewing directions are possible. It is especially useful for providing views of the larynx from below.
计算机断层扫描虚拟喉镜检查是一种非侵入性放射技术，可通过空气/软组织界面的三维重建来观察管腔内表面。当患者无法耐受临床检查、感染、肿瘤或先天性缺陷影响管腔以及评估声门下区域时，该技术尤为有用。我们对因上呼吸道症状前来就诊的患者进行了虚拟喉镜检查，并将检查结果与传统喉镜检查结果进行了比较。
使用东芝Xpress螺旋扫描仪进行轴向扫描。然后在工作站上使用东芝“飞越”软件进行虚拟喉镜检查，检查在5分钟内完成。
病理情况包括声带小结、喉囊肿、任克氏水肿、喉肿瘤和白斑。
虚拟喉镜检查显示的解剖细节与传统内镜检查相当。不可通过的阻塞物不会造成阻碍，所有观察方向均可行。它对于从下方观察喉部特别有用。
