J Cardiovasc Comput Tomogr. 2015 Jul-Aug;9(4):255-63. doi: 10.1016/j.jcct.2015.04.004. Epub 2015 Apr 21.
Naoum C1, Blanke P1, Leipsic J2.
Iterative reconstruction (IR) has the ability to reduce image noise in CT without compromising diagnostic quality, which permits a significant reduction in effective radiation dose. This been increasingly integrated into clinical CT practice over the past 7 years and has been particularly important in the field of cardiac CT with multiple vendors introducing cardiac CT-compatible IR algorithms. The following review will summarize the principles of IR algorithms, studies validating their noise- and dose-reducing abilities, and the specific applications of IR in cardiac CT.