Abstract：Objective: To explore the optimal reconstruction parameters of normal inner ear RaySum imaging with 64-slice spiral CT. Methods: 30 cases of normal ears underwent 64-slice spiral CT volume scanning. The images were amplified reconstruction, and to compare the effects of different reconstruction algorithms(high resolution bone algorithm, standard bone algorithm, soft tissue algorithm) and reconstruction interval(0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm) on the 3D image quality of the inner ear RaySum imaging. Results: The differences were very significant in the inner ear three-dimensional RaySum image quality of three different reconstruction algorithms(P<0.01), and the high resolution bone algorithm image quality is the best. There was no significant difference in the image quality between 0.1 mm and 0.2 mm image reconstruction interval groups (P>0.05); the image quality of 0.1 mm and 0.2 mm reconstruction interval group were obviously better than that of 0.3 mm, 0.4 mm and 0.5 mm reconstruction interval group, the differences were significant(P<0.01). Conclusion: The high resolution bone algorithm and 0.2 mm reconstruction interval were used as the best imaging parameters of inner ear RaySum imaging with 64-slice spiral CT.
2015, Vol. 26 
