| Autor: |
Block RE; Department of Radiology, Mount Sinai Medical Center, Miami Beach, Florida 33140., Parekh BC |
| Jazyk: |
angličtina |
| Zdroj: |
Magnetic resonance in medicine [Magn Reson Med] 1987 Sep; Vol. 5 (3), pp. 286-9. |
| DOI: |
10.1002/mrm.1910050310 |
| Abstrakt: |
The deuterium nuclear spin relaxation times have been measured in tissues taken from rats given 20% deuterium oxide in their drinking water. The spin-lattice and spin-spin relaxation times were measured at 13.7 MHz by the inversion-recovery and Carr-Purcell-Meiboom-Gill FT methods, respectively. The reciprocals of the spin-lattice (T1) relaxation times were found to correlate well with those of protons in similar nondeuteriated tissues at a similar frequency (13.6 MHz) measured in a separate study. A least-squares analysis of the data yields (1/T1)H = (0.991)(1/T1)D - 3.48 for five tissues (standard deviations of 0.097 for the slope and 0.383 for the intercept with a correlation coefficient of 0.986). Implications with respect to relaxation mechanisms are discussed. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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