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- Publications
- Influence
Relaxometry of brain: Why white matter appears bright in MRI
- S. Koenig, R. D. Brown, M. Spiller, N. Lundbom
- Chemistry, Medicine
- Magnetic resonance in medicine
- 1 June 1990
The remarkable success of magnetic resonance imaging of adult brain relates to the unusually large ratio of the longitudinal relaxation rates 1 / T1 of white and gray matter, ∼2:1 at physiological… Expand
Theory of 1/T1 and 1/T2 NMRD profiles of solutions of magnetic nanoparticles
Organically coated iron oxide crystallites with diameters of 5–50 nm (“nanoparticles”) are potential magnetic resonance imaging contrast agents. 1/T1 and 1/T2 of solvent water protons are increased… Expand
Brownian motion of an ellipsoid. A correction to Perrin's results
- S. Koenig
- Chemistry
- 1 November 1975
Conformation states of concanavalin A: kinetics of transitions induced by interaction with Mn2+ and Ca2+ ions.
- R. D. Brown, C. Brewer, S. Koenig
- Chemistry, Medicine
- Biochemistry
- 23 August 1977
Cholesterol of myelin is the determinant of gray‐white contrast in MRI of brain
- S. Koenig
- Chemistry, Medicine
- Magnetic resonance in medicine
- 1 August 1991
The relative brightness of adult white matter in T1‐weighted MRI arises from myelin, but the mechanisms responsible remain to be clarified. Koenig et al. [Magn. Reson. Med. 14, 482 (1990)]… Expand
Field-cycling relaxometry of protein solutions and tissue: Implications for MRI
- S. Koenig, R. D. Brown
- Chemistry
- 1990
Structure Factor and Radial Distribution Function for Liquid Argon at 85 °K
- J. L. Yarnell, M. Katz, R. Wenzel, S. Koenig
- Physics
- 1 June 1973
Transverse relaxation of solvent protons induced by magnetized spheres: Application to ferritin, erythrocytes, and magnetite
Since 1/T2 of protons of tissue water is generally much greater than 1/T1 at typical imaging fields, small single‐ion contrast agents–such as Gd(DTPA), which make comparable incremental contributions… Expand
Magnetic field dependence of 1/T1 of protons in tissue.
- S. Koenig, R. D. Brown, D. Adams, D. Emerson, C. G. Harrison
- Chemistry, Medicine
- Investigative radiology
- 1 March 1984
It is well established that the spin-lattice magnetic relaxation rate 1/T1 of solvent protons in homogeneous protein solutions increases dramatically as the magnetic field is reduced well below the… Expand
Conformation as the determinant of saccharide binding in concanavalin A: Ca2+-concanavalin A complexes.
- S. Koenig, C. Brewer, R. D. Brown
- Chemistry, Medicine
- Biochemistry
- 3 October 1978
The existence of two conformational states of concanavalin A (Con A) with different metal ion binding properties has been recently demonstrated (Brown, R. D., Brewer, C. F., & Koenig, S. H. (1977)… Expand