Abstract #2715
Assessment of blood flow velocity and pulsatility in cerebral perforating arteries with 7T phase contrast MRI
Lennart J. Geurts 1 , Willem H. Bouvy 2 , Hugo J. Kuijf 3 , Peter R. Luijten 1 , L. Jaap Kappelle 2 , Geert Jan Biessels 2 , and Jaco J.M. Zwanenburg 1
1
Radiology, UMC Utrecht, Utrecht,
Netherlands,
2
Neurology,
UMC Utrecht, Utrecht, Netherlands,
3
Imaging
Sciences Institute, UMC Utrecht, Utrecht, Netherlands
Reproducibility study at 7T for blood flow velocity
measurements in cerebral perforating arteries.A single
slice phase contrast sequence with 0.3x0.3x2.0mm voxels
was used at three locations (medial cerebral artery:M1,
basal ganglia:BG and semioval centre:CSO) in six healthy
volunteers.Mean velocities (in cm/s) and their
coefficients of repeatability (CoR) were 44(10) for M1,
4.6(1.9) for BG, 0.63(0.46) for CSO.The pulsatility
index and its CoR was 0.56(0.24) for M1, 0.40(0.15) for
BG and 0.28(0.14) for CSO.Blood flow velocity and
pulsatility in cerebral perforating arteries may be an
interesting new metric to study hemodynamic changes in
ageing and cerebral small vessel disease.
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