Parameter relations for the Shinnar-Le Roux selective excitationpulse design algorithm [NMR imaging]
Pauly, J.
Le Roux, P.
Nishimura, D.
Macovski, A.
Inf. Syst. Lab., Stanford Univ., CA;
This paper appears in: Medical Imaging, IEEE Transactions on
Publication Date: Mar 1991
Volume: 10,
Issue: 1
On page(s): 53-65
ISSN: 0278-0062
References Cited: 24
CODEN: ITMID4
INSPEC Accession Number: 3910557
Digital Object Identifier: 10.1109/42.75611
Current Version Published: 2002-08-06
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
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