Assessment of image quality of multi-slice spiral CT is important for theoretical studies and practical applications. Image artifacts are structured or patterned interference over the field of view. In this project, spatial variation of image quality in multi-slice CT will be numerically and experimentally studied.
Image noise is quantified as standard deviation of water background.
Due to divergence of the X-ray beam and asymmetry in the spiral CT interpolation, both resolution and noise depend on measurement location in the field of view. The Analyze software will be used for image analysis and visualization. The spatial variation of image quality of multi-slice CT will be quantified. The results will be plotted and animated for presentation and publication. The guidelines for clinical imaging protocol optimization will be summarized.