Bush Kevin, Huikeshoven Menno, Wong Nathan
Department of Plastic Surgery, University of British Columbia, Vancouver, British Columbia, Canada.
Craniomaxillofac Trauma Reconstr. 2013 Dec;6(4):237-40. doi: 10.1055/s-0033-1349214. Epub 2013 Sep 24.
The choice of frontal sinus fracture treatment is based on multiple factors, one of which is injury to the nasofrontal outflow tract (NFOT). Computed tomography (CT) imaging of the NFOT can play an important role in the decision process. We sought to assess the visibility of the NFOT on CT scans in frontal sinus fractures. Patients with frontal sinus fractures (including the posterior table) receiving a CT scan from April 1st 2001 to December 31st 2009 were included. Scans were retrospectively assessed for available views (axial, coronal, and sagittal), slice thickness, inclusion of the anatomical NFOT region in the scanned area, and visibility of the NFOT. A total of 170 patients were included. In majority (71%) of patients NFOT was visible on one or more views, whereas in 33% (N = 56) of patients had three complete views (complete anatomical NFOT region scanned in three views). In this subgroup, the ability to assess the NFOT increased to 89%. When selecting patients with three complete views of ≤ 2 mm slice thickness (N = 47), the ability to assess the NFOT increased to 96%. In conclusion, when assessing the NFOT using CT imaging, having three complete views (axial, coronal, and sagittal) and a ≤ 2 mm slice thickness greatly increases the NFOT visibility.
额窦骨折治疗方法的选择基于多种因素，其中之一是鼻额引流通道（NFOT）损伤。NFOT的计算机断层扫描（CT）成像在决策过程中可发挥重要作用。我们旨在评估CT扫描在额窦骨折中对NFOT的显示情况。纳入2001年4月1日至2009年12月31日期间接受CT扫描的额窦骨折患者（包括后骨板）。对扫描图像进行回顾性评估，包括可用视图（轴位、冠状位和矢状位）、层厚、扫描区域内是否包含NFOT解剖区域以及NFOT的显示情况。共纳入170例患者。大多数患者（71%）在一个或多个视图上可看到NFOT，而33%（N = 56）的患者有三个完整视图（NFOT解剖区域在三个视图中均被扫描）。在该亚组中，评估NFOT的能力提高到89%。当选择层厚≤2 mm且有三个完整视图的患者（N = 47）时，评估NFOT的能力提高到96%。总之，使用CT成像评估NFOT时，拥有三个完整视图（轴位、冠状位和矢状位）且层厚≤2 mm可大大提高NFOT的显示率。
