Aurelien F. Stalder1,2, Alex Frydrychowicz3,
Andreas Harloff4, Qi Yang1, Jelena Bock2,
Juergen Hennig2, Kuncheng Cheng Li1, Michael Markl2
1Dept. of Radiology, Xuanwu Hospital,
Capital Medical University, Beijing, China; 2Dept. of Diagnostic
Radiology - Medical Physics, University Hospital, Freiburg, Germany; 3Dept.
of Radiology, University of Wisconsin-Madison, Freiburg, Germany; 4Dept.
of Neurology, University Hospital, Freiburg, Germany
4D
flow-sensitive MRI was used with 3D flow visualization techniques and a
vortex core detection algorithm to detect patterns of swirling flow in the
aorta, the carotid arteries as well as intracranial arteries in volunteers
and patients. While aneurysms presented strong vortex cores, weaker vortex
cores were identified in the healthy aortic arch and the healthy internal
carotid artery. The vortex core detection provided a fast and simple way to
detect locations of swirling flow within 4D flow-sensitive MRI datasets.