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The relationship between NMR spin‐lattice relaxation times for human tumor tissue at 24 and 6.25 MHz
Author(s) -
Ekstrand K. E.,
Dixon R. L.,
Scarantino C. W.,
Kovacs C. J.
Publication year - 1984
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.595577
Subject(s) - larmor precession , nuclear magnetic resonance , spin–lattice relaxation , relaxation (psychology) , magnetic resonance imaging , condensed matter physics , nuclear magnetic resonance spectroscopy , lattice (music) , materials science , chemistry , physics , magnetic field , medicine , radiology , quantum mechanics , acoustics , nuclear quadrupole resonance
The nuclear magnetic resonance (NMR) spin‐lattice relaxation time ( T 1 ) of samples taken from human tumors was measured in vitro at Larmor frequencies of 24 and 6.25 MHz. It was found that on the average T 1 at 6.25 MHz was linearly related to T 1 at 24 MHz. An analogous set of measurements was performed on pieces of normal rat tissue. In this case, the relationship between T 1 at the two frequencies was similar to that found for the human tumor tissue.