多层螺旋CT高分辨率重叠扫描在诊断鼻骨骨折中的作用

The diagnostic efficacy of multi-slice spiral CT high-resolution and overlapping scanning in nasal bone fracture

目的:探讨多层螺旋CT高分辨率重叠扫描在诊断鼻骨骨折中的作用及其诊断价值。方法:对74例鼻部外伤患者行螺旋CT横断二维高分辨率重叠扫描,并进行多平面(MPR)和三维(3D)重建。扫描范围从上颌牙至眶上缘。8例患者尚行冠状位扫描,以作对照。结果:本组74例发现鼻骨和相邻结构骨折71例,其中单侧鼻骨骨折37例,双侧鼻骨骨折28例,上颌骨额突骨折46例,并发眼眶壁及鼻中隔骨折13例。结论:多层螺旋CT高分辨率重叠扫描能准确细致地显示鼻骨及周围诸骨结构,对鼻骨骨折的部位、类型及伴发改变诊断全面、准确,是当前鼻骨骨折诊断的一种可靠、安全。

ObjectiveTo study the clinical value of multi-slice spiral CT high-resolution and overlapping scaning in nasal bone fracture.Methods 74 cases of nasal trauma were examined by spiral CT high-resolution and overlapping scaning test with MPR and 3D reconstruction.The scanning region ranged from the upper teeth to superior edge of the orbit. Coronal-CT imaging was performed in 8 patients in order to compare with that of HRCT and 3D CT images.Results In 74 cases of fracture of nasal bone and contiguity ,fracture of bilateral nasal bone was found in 28 cases,fracture of the unilateral nasal bone in 37 cases,fracture of the frontal process of maxillary bone in 46 cases, fracture of orbital walls and fracture of nasal septum in 13 cases.Conclusion Multi-slice spiral CT high-resolution and overlapping scaning could accurately display the bony details in the nasai region including location,extent and secondary complex fractures.