Quantitative measurements of proton spin-lattice (T1) and spin-spin (T2) relaxation times in the mouse brain at 7.0 T

2003 ◽  
Vol 49 (3) ◽  
pp. 576-580 ◽  
Author(s):  
David N. Guilfoyle ◽  
Victor V. Dyakin ◽  
Jacqueline O'Shea ◽  
Gaby S. Pell ◽  
Joseph A. Helpern
Keyword(s):  
Mouse Brain ◽  
Relaxation Times ◽  
Proton Spin ◽  
T2 Relaxation ◽  
Spin Lattice ◽  
Quantitative Measurements

A general survey of the proton spin-lattice relaxation-times of some oligo- and poly-saccharide derivatives

1976 ◽  
Vol 49 ◽  
pp. 3-11 ◽  
Author(s):  
Laurance D. Hall ◽  
Caroline M. Preston
Keyword(s):  
Relaxation Times ◽  
Lattice Relaxation ◽  
Proton Spin ◽  
Spin Lattice Relaxation ◽  
General Survey ◽  
Spin Lattice

Molecular motion in the lyotropic liquid crystal system containing potassium palmitate: A study of proton spin-lattice relaxation times

1979 ◽  
Vol 36 (2) ◽  
pp. 151-171 ◽  
Author(s):  
K.R Jeffrey ◽  
T.C Wong ◽  
E.E Burnell ◽  
M.J Thompson ◽  
T.P Higgs ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Molecular Motion ◽  
Relaxation Times ◽  
Lattice Relaxation ◽  
Proton Spin ◽  
Lyotropic Liquid Crystal ◽  
Spin Lattice Relaxation ◽  
Crystal System ◽  
Spin Lattice ◽  
Liquid Crystal System

PROTON SPIN-LATTICE RELAXATION TIMES OF HUMIC ACIDS AS DETERMINED BY SOLUTION NMR

Soil Science ◽  
2003 ◽  
Vol 168 (2) ◽  
pp. 128-136 ◽  
Author(s):  
Kaijun Wang ◽  
L. Charles Dickinson ◽  
Elham A. Ghabbour ◽  
Geoffrey Davies ◽  
Baoshan Xing
Keyword(s):  
Humic Acids ◽  
Relaxation Times ◽  
Lattice Relaxation ◽  
Proton Spin ◽  
Spin Lattice Relaxation ◽  
Solution Nmr ◽  
Spin Lattice

Magnetic Resonance Microscopy of Chemically-Induced Liver Foci

1989 ◽  
Vol 17 (4_part_1) ◽  
pp. 613-616 ◽  
Author(s):  
G. Allan Johnson ◽  
Robert R. Maronpot
Keyword(s):  
Magnetic Resonance ◽  
Imaging Technique ◽  
Relaxation Times ◽  
Basic Research ◽  
Resonance Imaging ◽  
T2 Relaxation ◽  
Spin Lattice ◽  
Chemically Induced ◽  
Magnetic Resonance Imaging Mri

Magnetic resonance imaging (MRI) is a new imaging technique used in clinical diagnosis. This paper describes extension of the technique to basic research applications–specifically detecting and characterizing chemically-induced liver neoplasms and foci of cellular alteration. Two systems have been built that allow spatial microscopic resolution–more than 100,000 x greater than that of earlier efforts. Use of spin-lattice (T1) and spin-spin (T2) relaxation times permits detailed characterization of the tissue.

Histopathological Evidence in Support of the Association of Elevated Proton Spin-lattice Relaxation Times with the Malignant State

1979 ◽  
Vol 65 (2) ◽  
pp. 157-162 ◽  
Author(s):  
S. S. Ranade ◽  
Smita Shah ◽  
G. V. Talwalkar
Keyword(s):  
Human Cancer ◽  
Relaxation Times ◽  
Lattice Relaxation ◽  
Malignant Cell ◽  
Proton Spin ◽  
Spin Lattice Relaxation ◽  
Histopathological Study ◽  
Spin Lattice ◽  
Malignant State ◽  
T Values

The pulsed nuclear magnetic resonance technique was explored for its potential diagnostic value in human cancer. Measurements of proton spin-lattice relaxation times (T1) of cellular water protons of normal and malignant esophageal tissues showed elevated T, values in the latter. In some cases, tissues which appeared normal on gross examination assumed as uninvolved tissues had T, values higher than the other grossly uninvolved tissues and often closer to the T, of the corresponding tumor tissue. A histopathological study of the assumed uninvolved areas also studied for the T, values was therefore undertaken. A preliminary study demonstrated the presence of malignant cell groups or clusters in some of the uninvolved samples with higher T1 compared to the true uninvolved tissues, which had a normal histological picture and low T, values. This observation has brought out the importance of histopathological studies in addition to relaxation studies to comprehend contributory factors to relaxation. Secondly, it lends support to the thesis of elevated T, values being characteristics of the malignant state.

scholarly journals Determination of optimal angles for variable nutation proton magnetic spin-lattice,T1, and spin-spin,T2, relaxation times measurement

2003 ◽  
Vol 51 (1) ◽  
pp. 194-199 ◽  
Author(s):  
Sean C.L. Deoni ◽  
Terry M. Peters ◽  
Brian K. Rutt
Keyword(s):  
Relaxation Times ◽  
T2 Relaxation ◽  
Spin Lattice ◽  
Magnetic Spin

Proton spin-lattice and spin-spin relaxation times of (N(CH3)3H)(I)(TCNQ)

1978 ◽  
Vol 18 (5) ◽  
pp. 2046-2049 ◽  
Author(s):  
Michael F. Froix ◽  
Arthur J. Epstein ◽  
Joel S. Miller
Keyword(s):  
Spin Relaxation ◽  
Relaxation Times ◽  
Proton Spin ◽  
Spin Lattice

A study of 14N relaxation and nitrogen–proton spin coupling in Watson–Crick base pair models through Fourier transform measurements on NH proton spin–lattice relaxation in the rotating frame

1979 ◽  
Vol 57 (9) ◽  
pp. 1075-1079 ◽  
Author(s):  
Michael E. Moseley ◽  
Peter Stilbs
Keyword(s):  
Relaxation Times ◽  
Lattice Relaxation ◽  
Proton Spin ◽  
Coupling Constants ◽  
Spin Coupling ◽  
Spin Lattice Relaxation ◽  
Indirect Measurements ◽  
Spin Lattice ◽  
Proton Coupling ◽  
Nuclear Spin Lattice Relaxation

Indirect measurements of nitrogen-14 nuclear spin-lattice relaxation times and direct proton coupling constants are presented together with carbon-13 T1 data for a series of alkyl-substituted nucleic acid bases and mixtures thereof in DMSO-d6. With the exception of the guanine NH nitrogen, which possibly experiences a decrease in the electric field gradient upon complexation with cytosine, no indications of significant changes in the electronic environment around the nitrogen nuclei were found for any combination of bases. Forsen–Hoffman spin saturation transfer experiments on the NH and NH2 protons are also presented.

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