Abstract #2746
Accelerated 4D Phase Contrast UTE MRI
Abdallah G. Motaal 1 , Verena Hoerr 2 , Huiming Dong 1 , Luc M. J. Florack 3 , Klaas Nicolay 1 , and Gustav J. Strijkers 1
1
Biomedical NMR, Department of Biomedical
Engineering, Eindhoven University of Technology,
Eindhoven, North Brabant, Netherlands,
2
Department
of Clinical Radiology, University Hospital of Muenster,
Muenster, Germany,
3
Mathematics
and Computer Science, Eindhoven University of
Technology, Eindhoven, North Brabant, Netherlands
Signal from short T2 components cannot be detected with
conventional MR pulse sequences. Ultrashort echo time
MRI makes echo times in the range of 0.01-0.5 ms
possible. Here, we introduce a MRI protocol for time
resolved 3D UTE Cine Imaging. The sequence involves a
retrospectively triggered 3D radial UTE MRI acquisition
and compressed sensing reconstruction. 3D time resolved
movies with isotropic spatial resolution of 250 m and 8
frames per cardiac cycle were achieved in 25 minutes. By
incorporating flow encoding gradients, flow velocity
could be estimated using phase contrast MRI with a very
short TE of 0.68 ms.
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