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[The clinical study of multi-slice helical CT three-dimensional reconstruction in the sphenopalatine foramen].

OBJECTIVE: Used multi-slice helical CT to observe the reconstruction of the surface structure of nasal lateral wall "sphenopalatine foramen" and compared with anatomical specimens to verify the dependability of 3D data.

METHOD: The position, shape, size and their correlational data of sphenopalatine foramen of 5 cadaver heads (10 sides) in adults fixed with formalin were dissected and measured.

RESULT: Multi-slice helical CT has more rapid speed of 3D reconstruction and clearer imaging. The technique of Shade surface display and Volume rendering can give very clear structure of nasal lateral wall "sphenopalatine foramen". The 3D data makes no statistic difference with anatomical measurement. The 3D data can instruct the clinic directly.

CONCLUSION: Multi-slice helical CT three-dimensional reconstruction can be used to orientation of surgery.

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