%0 Journal Article %T Comparison of coronary computed tomography angiography image quality with high- and low-concentration contrast agents (CONCENTRATE): study protocol for a randomized controlled trial %A Byoung Wook Choi %A Dong Jin Im %A Hyo Rim Kim %A Joon-Won Kang %A Jung Im Jung %A Ki Seok Choo %A Kyunghwa Han %A Myung Hee Chung %A Yoodong Won %A Yun-Hyeon Kim %J Archive of "Trials". %D 2016 %R 10.1186/s13063-016-1441-y %K Computed tomography %K Coronary computed tomography angiography %K CCTA %K Coronary artery disease %K CAD %K Contrast agent %K Radiation %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4946231/