Flow field mapping by multi-zone adiabatic passage excitation.
This paper describes a robust method for flow field mapping by multi-zone adiabatic fast passage (AFP). It provides a quick and simple way to simultaneously acquire flow profiles at several locations and arbitrary orientations inside the field-of-view. The flow profile is the time-averaged evolution of the labeled flowing material. Results obtained using a carotid bifurcation and jet phantoms are similar to the previous experimental studies employing Laser Doppler Anemometry (LDA), and other flow visualization techniques. In addition, the preliminary results obtained with a human volunteer support the feasibility of the technique for in vivo flow quantification.
Vu
A T
AT
Department of Radiological Sciences, University of California, Irvine 92717-5000.
Lee
H K
HK
Moran
P R
PR
Nalcioglu
O
O
D001783:Blood Flow Velocity / Q000502:physiology*; D001808:Blood Vessels / Q000033:anatomy & histology*; D002339:Carotid Arteries / Q000033:anatomy & histology; D018056:Hemorheology; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008955:Models, Cardiovascular; D008961:Models, Structural