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Variability of magnetic resonance parameters in pituitary adenomas at low temperature
I Pócsik1, M Kenyeres, E Pásztor
1Central Research Institute for Physics, Budapest, Hungary.
Physiological Chemistry and Physics and Medical NMR
|January 1, 1993
Abstract:
Temperature dependent spin-lattice relaxation time, T1, measurements were carried out on surgically removed pituitary adenoma tissues at low temperature. Differences were found between samples; the temperature dependence of T1 showed a broad minimum below freezing. The measured data were fitted by theoretical lines to determine various parameters such as activation energy, correlation time and intensity.