Poster: ECR 2017 / C-0823 / Evaluation of streak artifacts using structural similarity (SSIM) in CT image with iterative reconstruction methods: A phantom study by: Y. miyamae , H. Sagawa, K. Koizumi, K. sakanishi, K. Itagaki, S. Arizono, K. Higashimura, K. Togashi; Kyoto/JP