Analytical optimization of modulation functions for adiabatic pulses
β Scribed by Jie F. Shen; John K. Saunders
- Publisher
- Elsevier Science
- Year
- 1992
- Weight
- 614 KB
- Volume
- 99
- Category
- Article
- ISSN
- 0022-2364
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π SIMILAR VOLUMES
Adiabatic RF pulses play an important role in spin inversion where G is the adiabatic parameter due to their robust behavior in presence of inhomogeneous RF fields. These pulses are characterized by the trajectory swept by the tip of the B eff vector and the rate of motion upon it. In this paper, a
We propose a new type of adiabatic pulses for uniform inversion of the magnetization in magnetic resonance imaging. We produced these pulses with an evolution strategy optimization, by which the search of the "best solution" has been made more efficient than by deterministic algorithms. The pulse pa
## Abstract Optimal control theory has been applied in the past for the design of RF pulses for selective excitation. This was the outcome of having established the controllability of the MR spin system for the selective excitation problem. βMinimum distanceβ was the main formulation used for the s