Cheng Ouyang1,2, Keith Thulborne3, Brad P. Sutton1,2
1Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, United States; 2Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL, United States; 3Center for Magnetic Resonance Research, University of Illinois at Chicago, Chicago, IL, United States
A novel vessel-encoded regional perfusion imaging technique is proposed by adding in-plane gradients into the pTILT sequence to provide differentiation of phase during flow encoding at different vessels. Simulations showed the labeling efficiency as the function of offset from encoded vessels follows an analytical sinusoid equation, which is useful to improve the separation of vascular perfusion regions. In vivo studies demonstrated the ability to provide robust delineation of vascular territories in regional perfusion imaging.