Title: Application of CT three-dimensional reconstruction in diagnosing atlantoaxial subluxation
Abstract: Objective To evaluate the diagnostic value of CT three dimensional (3D) reconstruction in atlantoaxial subluxation and point out the best way of 3D reconstruction. Methods 3D reconstruction findings of 41 cases with atlantoaxial subluxation were retrospectively analyzed so as to make comparisons with the traverse images and the pathologic changes detected by means of multiplanar reformatting (MPR), surface shade display (SSD), maximum intensity projection (MIP) and volume rendering (VR). Results Of 41 cases with atlantoaxial subluxation, 31 had rotary dislocation, five anterior dislocation and five posterior dislocation. The images showed 41 cases of dislocated joint panel, of which 29 with dislocation for 2 5 mm and 12 for 5 9 mm. There were 15 cases with deviation of the odontoid process and 8 with widened atlantodentilis. SSD showed directly the upper and lower surface of the altanto axial joint, the deviation of the odontoid process and the widened atlantodentilis. The traverse images and the images of MPR, MIP and VR showed poor dislocation. Conclusion Atlantoaxial subluxation can be displayed and diagnozed by 3D reconstruction, especially SSD.
Publication Year: 2004
Publication Date: 2004-01-01
Language: en
Type: article
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