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A computer simulation of nuclear magnetic resonance imaging
Author(s) -
Summers Ronald M.,
Axel Leon,
Israel Solomon
Publication year - 1986
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.1910030302
Subject(s) - computer science , aliasing , computer graphics , pulse sequence , computer graphics (images) , modular design , signal (programming language) , fourier transform , artificial intelligence , computer vision , nuclear magnetic resonance , filter (signal processing) , physics , quantum mechanics , programming language , operating system
A modular, user‐friendly computer simulation of NMR imaging was created for the DEC VAX computer. This simulation is novel in that complex imaging phenomena, such as chemical shifts and flow, may be easily studied. Other features include spin warp and backprojection imaging, movie generation, and simulation of image contrast, composite pulse sequences, motion artifacts, aliasing, selective excitation, field inhomogeneity, noise and signal averaging. The simulation incorporates fast Fourier transform and graphics modules for processing and display of one‐and two‐dimensional images. Examples which illustrate features of the program are shown. The simulation is a useful tool for both the sophisticated and the beginning user of NMR imaging. It serves as a drawing board for studying MRI phenomena and a teaching program for demonstrating basic techniques. © 1986 Academic Press, Inc.