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Diurnal fluid changes of lumbar discs measured indirectly by magnetic resonance imaging
Author(s) -
Paajanen Hannu,
Lehto Ilkka,
Alanen Anu,
Erkintalo Minna,
Komu Markku
Publication year - 1994
Publication title -
journal of orthopaedic research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.041
H-Index - 155
eISSN - 1554-527X
pISSN - 0736-0266
DOI - 10.1002/jor.1100120407
Subject(s) - magnetic resonance imaging , nuclear magnetic resonance , magnetization , chemistry , bed rest , magnetization transfer , materials science , magnetic field , medicine , radiology , physics , quantum mechanics
The feasibility of magnetic resonance imaging and the magnetization transfer technique for measurement of diurnal fluid changes in lumbar discs was studied with the use of 13 healthy subjects. The diurnal height loss of the subjects ranged from 13 to 21 mm. The disc signal in T 2 ‐weighted magnetic resonance imaging increased as much as 25% after overnight bed rest, presumably due to the enhanced influx of water. The change in magnetization transfer parameters also suggested increased hydration of the disc after bed rest. Magnetic resonance imaging techniques can be used for indirect measurement of the changes in fluid content and the interaction of water with macromolecules in the disc.