Pulse sequence and parameter choice in NMR imaging as a problem of constrained multidimensional nonlinear optimization
✍ Scribed by Wolfgang Dreher; Peter Börnert
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 506 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0740-3194
No coin nor oath required. For personal study only.
✦ Synopsis
The advantage of the multiparametric nature of NMR imaging is connected with the problem of finding optimum pulse sequences and sequence parameters, which ensure a high contrast-to-noise ratio. For a given imaging task with m ( m > 2) regions characterized by sets of NMR parameters (e.g., p, T I , T,) two functions are proposed, which can be used to transform the search for an optimum pulse sequence into a problem of constrained multidimensional nonlinear optimization. The numerical algorithm is described and the results of two examples are presented and discussed. A short description of useful extensions of the proposed optimization approach, which are currently implemented, is given.