PAPER OF THE WEEK

Magn Reson Med. 2012 May 30. doi: 10.1002/mrm.24346. [Epub ahead of print]

Free-breathing multiphase whole-heart coronary MR angiography using image-based navigators and three-dimensional cones imaging.

In Dr Wu and Cols work, a new free-breathing coronary MR angiography technique that reduces scan time and improves robustness to motion is developed. Data acquisition is accomplished using a three-dimensional cones non-Cartesian trajectory, which can reduce the number of readouts 3-fold or more compared to conventional three-dimensional Cartesian encoding and provides greater robustness to motion/flow effects.  Experimental results demonstrate that whole-heart coronary angiograms can be obtained rapidly and robustly with this proposed technique.