Tejas Nair1,
Rolf Pohmann2, Michael Gach1
1Research Imaging Facility, Nevada
Cancer Institute, Las Vegas, NV, United States; 2MRT, Max Planck
Institute for Biological Cybernetics, Tuebingen, Germany
The
aliasing, off-resonance saturation, and residual signal (control-label)
characteristics of pulsed continuous arterial spin labeling (PCASL) were
measured in a 2% agar phantom using various values of label and control RF
(B1) and gradient (Gmax) amplitudes. Aliasing and off-resonance saturation
for both the label and control increased with increasing B1 but decreased
with increasing Gmax. The residual signal also decreased with increasing
Gmax.