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Updated: Aug 18, 2026

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
Published on: February 4, 2017
Starter sequence for steady-state free precession imaging
1Philips Medical Systems (Cleveland), Inc., 595 Miner Road, Cleveland, OH 44143, USA. david.foxall@philips.com
Abstract:
The dynamic equilibrium exploited by balanced steady-state free precession imaging develops slowly because its formation is dependent on both spin-spin and spin-lattice relaxation times. Attempting to image before steady state is established results in artifacts due to transient signal oscillations. Using a starter sequence to precondition the spin system can significantly reduce the delay before imaging. An improved design for a steady-state starter sequence is presented. The new sequence has the advantage of uniformly exciting the steady-state response for all resonance offsets and can be phase cycled to suppress banding artifacts.
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