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IEEE Trans Med Imaging. 1991;10(1):53-65.

Parameter relations for the Shinnar-Le Roux selective excitation pulse design algorithm [NMR imaging].

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1
Inf. Syst. Lab., Stanford Univ., CA.

Abstract

An overview of the Shinnar-Le Roux (SLR) algorithm is presented. It is shown how the performance of SLR pulses can be very accurately specified analytically. This reveals how to design a pulse that produces a specified slice profile and allows the pulse designer to trade off analytically the parameters describing the pulse performance. Several examples are presented to illustrate the more important tradeoffs. These include linear-phase and minimum- and maximum-phase pulses. Linear-phase pulses can be refocused with a gradient reversal and can be used as spin-echo pulses. Minimum- and maximum-phase pulses have better slice profiles, but cannot be completely refocused.

PMID:
18222800
DOI:
10.1109/42.75611
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