Wouter M. Teeuwisse1,2, Maarten J. Versluis1,2, Mark A. van Buchem1,2, Matthias J.P. van Osch1,2
1Radiology, Leiden University Medical Center,
Leiden, Netherlands; 2C.J.Gorter Center for High Field MRI, Leiden,
Netherlands
In Arterial Spin Labeling, background suppression (BS) is known to enable a two
fold increase in SNR of the perfusion images. However, for multi slice
acquisition BS is only optimal for the first slice and will deteriorate in
later slices due to regrowth of the background signal. In this study, efficiency
of BS and its relation to SNR is investigated and also, whether addition of BS
inversion pulses that are played between acquisition of slices improves BS and
SNR for later slices.