螺旋CT扫描和三维重建诊断颌面部骨折的应用价值

目的：研究螺旋CT二维影像和三维影像对显示颌面部骨折的优缺点和临床应用价值。方法：对22例不同类型的颌面部骨折患者进行了螺旋CT薄层扫描和三维重建。结果：对于颌面部骨折的诊断，CT二维和CT三维重建影像不存在明显差异，但CT三维重建对下颌骨髁状突骨折 和Le-Fort各型骨折的显示优于CT二维影像，CT二维影像在发现细小骨折和深部结构骨折及骨折周围软组织改变方面优于CT三维重建。结论：CT二维、CT三维重建对于颌面部骨折的显示各有优缺点，两者结合应用，为最佳检查方法。

The value of spiral CT scan and three dimensional reconstruction in maxillofacial fracture

Objective:To evaluate the advantage and disadvantage of 2D CT and 3D reconstruction in facial fracture. Methods:2D CT and 3D reconstruction were performed in 22 cases with maxillofacial fracture. Results :2D CT and 3D reconstruction had no significant difference in diagnosis of maxillofacial fracture. 3D reconstruction was the better method in demonstration of the fracture of mandibular condyle and all types of LeFort fracture. But 2D CT demonstrated more accurately the tiny fracture,fracture of deep structures and the changes of the soft tissues around the fracture site. Conclusion:2D CT and 3D reconstruction have their advantages and disadvantages respectively in demonstration of the maxillofacial fracture, therefore the combined use of 2D and 3D images is the better way in diagnosing maxillofacial fracture.