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Improved visualization of the human lung in 1 H MRI using multiple inversion recovery for simultaneous suppression of signal contributions from fat and muscle
Author(s) -
Mai Vu M.,
KnightScott Jack,
Berr Stuart S.
Publication year - 1999
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/(sici)1522-2594(199905)41:5<866::aid-mrm2>3.0.co;2-d
Subject(s) - visualization , nuclear magnetic resonance , lung , magnetic resonance imaging , signal (programming language) , computer science , artificial intelligence , physics , medicine , radiology , programming language
1 H magnetic resonance imaging of the lung is hampered by the low contrast between lung parenchyma, and muscle and fat in the thorax. We show that it is possible to improve contrast greatly and thereby enhance the visibility of the lung, by suppression of signal of surrounding muscle and fat based on differences in T 1 relaxation times using a double inversion recovery preparation pulses (TI 1 800 msec, and TI 2 150 msec) and a half‐Fourier acquisition single‐shot turbo spin‐echo (HASTE) sequence. The measured T 1 values for the right and left lungs at 1.5 T were 1.37 ± 0.18 and 1.41 ± 0.21 sec, respectively. Magn Reson Med 41:866–870, 1999. © 1999 Wiley‐Liss, Inc.