Title: The application of helical CT three-dimensional reconstruction imaging in the diagnosis of atlantoaxial joint dislocation
Abstract: Objective:To evaluate the diagnostic value of helical 16-slice CT three-dimensional reconstruction imaging in atlantoaxial joint dislocation.Methods:52 cases with atlas and axis injury underwent spiral CT scan,and,CT three-dimensional(3D) imaging(including volume rendering,VR;multi-planar reconstruction,MPR).Slice thickness was 7.5 mm,reconstruction slice thickness 0.625 mm,34 cases were examined by plain X-ray,and,3 cases underwent MRI scan. Results:Among 52 cases,35 cases were traumatic dislocation,5 cases were congenital malformation dislocation,11 cases were spontaneous dislocation,1 case was pathologic dislocation.Or 31 cases were spinner dislocation,2 cases were post-operation,21 cases were anterior dislocation.Multi-slice spiral CT and three-dimensional reconstruction can clearly,tri-dimensional,and directly display bone fracture,the location of dislocation.No diagnosis was missed in three-dimensional reconstruction.The rate of misdiagnosis in X-ray plain film was 26.5%,in axial view of CT scan was 13.5%.Conclusion:Multi-slice helical CT three-dimensional reconstruction imaging is an ideal method in diagnosing atlantoaxial joint dislocation and has significant clinical diagnostic value.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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