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Temperature distribution measurements in two‐dimensional NMR imaging
Author(s) -
Parker Dennis L.,
Smith Ver,
Sheldon Philip,
Crooks Lawrence E.,
Fussell Lauren
Publication year - 1983
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 - 10.1118/1.595307
Subject(s) - nuclear magnetic resonance , magnetic resonance imaging , materials science , medical imaging , range (aeronautics) , physics , radiology , medicine , composite material
This paper represents a preliminary study of the effects of regional temperature distribution in two‐dimensional nuclear magnetic resonance (NMR) T 1 imaging. It is found, as expected, that variations in local temperature appear as variations in the corresponding T 1 image. The potential use of NMR T 1 imaging in temperature measurements is evaluated in the case of water and blood samples. Using containers where the temperature could be either known or directly controlled with reasonable accuracy, images are obtained with samples having at least two regions at different temperatures. As expected, T 1 is found to vary linearly with 1/ T over the range of 0 °C to about 40 °C for blood. The potential use of T 1 imaging in hyperthermia applications is also discussed.