Andrews J C, Anzai Y, Mankovich N J, Favilli M, Lufkin R B, Jabour B
Division of Head and Neck Surgery, UCLA Medical Center 90024-1624.
Am J Otol. 1992 May;13(3):236-40.
Major advances in medical computer graphics workstations have provided the capability to produce high quality three-dimensional image reconstructions from conventional thin-section computerized tomography (CT) scans with the ability to observe the imaged structure from any angle, with views and dimensions that are comparable to actual dissections. We have applied this technique to the temporal bone to assess congenital aural atresia in surgical planning for hearing reconstruction in six patients. The digital information produced by thin-section CT scanning allowed for the re-creation of multiplanar reformatted, shaded surface, and volumetric images. With this technique the surface landmarks of the temporal bone were readily visualized, the configuration of the atretic plate and middle ear in relation to the tegmen and glenoid fossa could be precisely assessed and the structure of the ossicular mass was easily analyzed. Most significantly, the facial nerve could be accurately and easily envisioned in its entire intratemporal course. Three-dimensional imaging is a highly desirable means for observing CT scan data to facilitate the surgical planning for correction of congenital aural atresia.
医学计算机图形工作站的重大进展，使得从传统的薄层计算机断层扫描（CT）中生成高质量三维图像重建成为可能，能够从任何角度观察成像结构，其视图和尺寸可与实际解剖相媲美。我们已将此技术应用于颞骨，以评估6例先天性耳道闭锁患者听力重建手术规划中的情况。薄层CT扫描产生的数字信息可用于重新创建多平面重建、阴影表面和容积图像。通过这项技术，颞骨的表面标志很容易可视化，闭锁板和中耳相对于颞中回和关节窝的结构能够得到精确评估，听小骨团的结构也易于分析。最重要的是，面神经在其整个颞内行程中能够被准确且轻松地显示出来。三维成像对于观察CT扫描数据以促进先天性耳道闭锁矫正手术的规划来说，是一种非常理想的手段。
