In an article published in the March/April 2015 issue, and author affiliation was listed incorrectly. Lijuan Fan should be affiliated with the Department of Radiology, General Hospital of Tianjin Medical University, Tianjin, China, and the Department of Radiology, Cardiovascular Clinical Institute of Tianjin Medical University, Tianjin, China.
This change has been noted in the online version of the article, which is available at www.jcat.org.
Fan L, Zhang J, Xu D, et al. CTCA Image Quality Improvement by Using Snapshot Freeze Technique Under Prospective and Retrospective Electrocardiographic Gating. J Comput Assist Tomogr