Maxillofacial bone fractures always bring serious facial abnormality and functional obstruction to the patients.

全面部骨折、陈旧性骨折等复杂的颅颌面骨折，常引起患者严重的三维颅颌面畸形。

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Objective To study the value of 3 dimensional reconstruction of spiral computerized tomogrphy(CT) in diagnosing maxillofacial bone fractures .

目的探讨螺旋CT三维重建技术在颌面部骨折诊断中的应用价值。

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Results Compared with MPR, VRT was superior in displaying all kinds of maxillofacial bone fractures, location, bone chip displacement, collapse degree and walking direction of irregular fracture line.

结果VRT在显示颌面部骨折的类型、位置、范围、碎骨块移位、塌陷，尤其是不规则骨折线的走行等空间信息方面优于多平面重建。

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