16层螺旋CT三维及多平面重建在头颅颌面骨骨折中的临床应用

Clinical application of three dimensional and multiplanar reconstruction with 16-slice spiral CT in skull and maxillofacial fracture

目的探讨多层螺旋CT(MSCT)三维(3D)及多平面重建(MPR)成像在头颅颌面骨骨折中的临床应用价值。方法对20例头颅颌面骨骨折患者行多层螺旋CT薄层扫描,然后多平面重建(MPR)及三维表面遮盖显示(3DSSD)成像。结果多层螺旋CTMPR成像清晰显示了所有的头颅颌面骨骨折,特别在显示细微骨折及深部骨折方面优于3DSSD成像。3DSSD成像能够立体、直观地显示骨折的位置、类型、范围、不规则骨折线走行及骨折块移位等空间关系。结论多层螺旋CTMPR结合3D成像对头颅颌面骨骨折的诊断治疗具有很高的临床应用价值。

Objective To evaluate the value of clinical application of the three dimensional （3D） and muhiplanar reconstruction （MPR） with muhislice spiral CT（MSCT） in skull and maxillofacial fracture. Methods Twenty patients with skull and maxillofacial fracture were examined with MSCT, then MPR and three-dimensional surface shaded display （3D-SSD） were performed in work-station. Results MSCT MPR imaging clearly showed all fractures in 20 patients, and were more accurate than 3 D-SSD in displaying tiny fracture and fracture of deep structure. 3D-SSD imaging could stereoscopically and directly show the fracture location, type, range, the course of irregular fracture line and fragment displacement. Conclusion MSCT MPR imaging in combination with 3 D imaging is of high value in diagnosis and treatment of skull and maxillofacial fracture.