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The design of practical selective pulses for magnetic resonance imaging and spectroscopy using SPINCALC
Author(s) -
Morris Peter G.,
McIntyre Dominick J. O.,
Rourke David E.,
Ngo J. Thomas
Publication year - 1991
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.1910170108
Subject(s) - nuclear magnetic resonance , pulse (music) , spectroscopy , computer science , nuclear magnetic resonance spectroscopy , magnetic resonance imaging , physics , optics , medicine , quantum mechanics , detector , radiology
Abstract Recently, we introduced a new numerical approach to the design and optimization of NMR selective pulses, which we have christened “SPINCALC” (J. T. Ngo and P. G. Morris, Biochem. Soc. Trans. 14, 1271 (1986); J. T. Ngo and P. G. Morris, Magn. Reson. Med. 5, 217(1987)). The first practical application of pulses generated by SPINCALC is demonstrated on a standard 0.5‐T clinical MRI system. Results are shown for single phase π pulses suitable both for selective inversion and for selective refocusing. The extension of SPINCALC to multidimensional pulses is illustrated by the design of a two‐dimensional π pulse. © 1991 Academic Press, Inc.