Contrast Media for Coronary CT Angiography: Should an Iso-osmolar Agent Be Used?
Radiology. 2018 Jan;286(1):81-82. doi: 10.1148/radiol.2017172170. Schoepf UJ1.
The heart, with its continuous motion, is one of the most challenging organs to image. This is most noticeable with the use of older computed tomographic (CT) scanner platforms, such as 64-section technology, which have limited temporal resolution for suppressing cardiac motion. Even the most recent and cutting-edge generation of dual-source and broad-detector CT scanners do not yet have the needed temporal resolution to image the coronary arteries without motion, regardless of the cardiac contraction cycle phase.