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Magnetic Resonance Imaging Characteristics of Multiple Sclerosis Plaques Imaged with Two‐dimensional and Three‐dimensional Fourier Transform Techniques at Low and Mid Field Strengths
Author(s) -
Rothschild Peter A.,
Kramer David M.,
Schulz Martin,
Kaufman Leon
Publication year - 1991
Publication title -
journal of neuroimaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.822
H-Index - 64
eISSN - 1552-6569
pISSN - 1051-2284
DOI - 10.1111/jon19911279
Subject(s) - medicine , multiple sclerosis , magnetic resonance imaging , fourier transform , field strength , nuclear magnetic resonance , signal (programming language) , nuclear medicine , radiology , magnetic field , physics , mathematics , mathematical analysis , quantum mechanics , psychiatry , computer science , programming language
A total of 58 multiple sclerosis lesions from 16 patients were used to characterize the performance of a low field system for the detection of edematous (e.g., water‐elevating) brain lesions. Contrast, signal‐to‐noise, and their product (signal difference to noise) were measured for two‐dimensional and three‐dimensional Fourier transform techniques at low field strength (640 G) and compared to two‐dimensional sequences at mid field strength (3,500 G). The results showed numerically that low field‐strength magnetic resonance imaging can reliably detect multiple sclerosis lesions, and, by extension, other water‐elevating lesions, although with lower confidence levels.