Kie Tae Kwon1, Holden H. Wu, 1,2,
Dwight G. Nishimura1
1Electrical Engineering, Stanford
University, Stanford, CA, United States; 2Cardiovascular Medicine,
Stanford University, Stanford, CA, United States
A
2D concentric rings trajectory is inherently centric-ordered, provides a
smooth weighting in k-space, and enables shorter scan times. Extensions of this trajectory for 3D
imaging include: stack-of-rings and concentric cylinders. 3D stack-of-rings
trajectory directly inherits flexible trade-offs property from 2D concentric
rings. 3D concentric cylinders trajectory is similar to stack-of-rings, but
it also has a unique property that leads to fewer excitations and benign
off-resonance effects. In this work, we revisited the 3D concentric cylinders
trajectory and have implemented an SSFP version of this sequence. Among the
potential applications of this sequence is non-contrast MR angiography based
on SSFP.