Abstract #2776
Cerebral Angiography in Rats: Comparison of 1 H TOF-MRA, SPIO Enhancement and Hyperpolarized 13 C bSSFP
Kasper Wigh Lips 1,2 , Peter Magnusson 1 , Lise Vejby Sgaard 1 , and Jan Henrik Ardenkjr-Larsen 2,3
1
Danish Research Centre for Magnetic
Resonance, Copenhagen University Hospital Hvidovre,
Hvidovre, Denmark,
2
Department
of Electrical Engineering, Technical University of
Denmark, Kgs. Lyngby, Denmark,
3
GE
Healthcare, Brndby, Denmark
We compare non-contrast enhanced MRA, SPIO enhanced MRA
and hyperpolarized
13
C
MRA in rat cerebral regions, and demonstrate how venous
structures can be imaged with acquisition times less
than a second. We describe optimized sequence designs
for each of the techniques. The hyperpolarized
13
C
shows promising results for angiographic imaging where
short acquisition time is essential, such as imaging
within a single heartbeat or breath hold.
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