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Delayed-focus pulses for magnetic resonance imaging: An evolutionary approach

✍ Scribed by Xi-Li Wu; Ping Xu; Ray Freeman

Publisher: John Wiley and Sons
Year: 1991
Tongue: English
Weight: 343 KB
Volume: 20
Category: Article
ISSN: 0740-3194
DOI: 10.1002/mrm.1910200118

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✦ Synopsis

Abstract

An evolutionary algorithm has been used to design a family of shaped radiofrequency pulses giving uniform absorption‐mode excitation across a predetermined frequency band. By allowing a free precession interval before signal acquisition, time is left for field gradients to be switched and for undesirable transients to decay. © 1991 Academic Press, Inc.

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