Zobrazeno 1 - 10
of 124
pro vyhledávání: '"Seymour H. Koenig"'
Three Types of Physical Measurements Needed to Characterize Iron Oxide Nanoparticles for MRI and MRA
Autor:
Dennis Kiyoshi Fujii, Karen Briley-Sæbø, Marga Spiller, Seymour H. Koenig, Kenneth E. Kellar, Gunther Wolfgang H H
Publikováno v:
Academic Radiology. 9:S5-S10
Iron oxide nanoparticles, with monocrystalline cores (generally magnetite or maghemite) and coated with organic polymer to increase chemical stability and solubility, have generated widespread interest as negative contrast (susceptibility) agents for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0514bbfdba80b3548fb2011329f5243
https://doi.org/10.1016/s1076-6332(03)80386-0
https://doi.org/10.1016/s1076-6332(03)80386-0
Autor:
Kenneth E. Kellar, Atle Bjørnerud, Seymour H. Koenig, Marga Spiller, Gunther Wolfgang H H, Dennis Kiyoshi Fujii, Karen Briley-Sæbø
Publikováno v:
Journal of Magnetic Resonance Imaging. 11:488-494
A preparation of monocrystalline iron oxide nanoparticles with an oxidized starch coating, currently in clinical trials (NC100150 Injection; CLARISCAN), was characterized by magnetization measurements, relaxometry, and photon correlation spectroscopy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a347e5759d2e49643eb3af965a0d023e
https://doi.org/10.1002/(sici)1522-2586(200005)11:5<488::aid-jmri4>3.0.co
https://doi.org/10.1002/(sici)1522-2586(200005)11:5<488::aid-jmri4>3.0.co
Autor:
Seymour H. Koenig
Publikováno v:
Investigative Radiology. 33:822-827
RATIONALE AND OBJECTIVES: Large magnetic entities, with diameters in the range of 4 nm to 4 microns, are becoming of increasing interest for magnetic resonance imaging (MRI). The smaller are iron oxide nanoparticles, used for the RE system, and the l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4abf655617afdfa4869ef16e2c710324
https://doi.org/10.1097/00004424-199811000-00005
https://doi.org/10.1097/00004424-199811000-00005
Autor:
Seymour H. Koenig, Kenneth E. Kellar
Publikováno v:
Academic Radiology. 5:S200-S205
Blood-pool contrast agents in current use in clinical MRI are, in the main, small, highly stable, Gd3+-chelate complexes with a single inner-coordinated water molecule on the metal ion. Unfortunately, their relaxivities, and hence efficacy, diminish
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05ab88c3f39fb5bbaaac7732e970ef69
https://doi.org/10.1016/s1076-6332(98)80106-2
https://doi.org/10.1016/s1076-6332(98)80106-2
Publikováno v:
Magnetic Resonance in Medicine. 37:730-735
The magnetic field dependence (NMRD profile) of 1/T1 of solvent protons in an aqueous solution of Gd(DTPA)2- was remeasured at 5, 15, 25, 30, and 35 degrees C. The data were reanalyzed with the usual low-field theory, using recently published values
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f4d9147c4c4607d30f86630f657fa7f
https://doi.org/10.1002/mrm.1910370515
https://doi.org/10.1002/mrm.1910370515
Autor:
Seymour H. Koenig, Kenneth E. Kellar
Publikováno v:
Academic Radiology. 3:S273-S276
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05f0f20529e5323eb46d6306faa3dd61
https://doi.org/10.1016/s1076-6332(96)80555-1
https://doi.org/10.1016/s1076-6332(96)80555-1
Autor:
Doreen E. Brown, Shengke Wang, Peter F. Knowles, Rodney D. Brown, Michele A. McGuirl, David M. Dooley, Robert A. Scott, Seymour H. Koenig
Publikováno v:
Inorganic Chemistry. 34:3895-3902
X-ray absorption and EPR spectroscopy have been used to probe the copper site structure in galactose oxidase at pH 4.5 and 7.0. the results suggest that there are no major differences in the structure of the tetragonal Cu(II) site at these pH values.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb244cc7a1d7c58972c5020c6677904d
https://doi.org/10.1021/ic00119a010
https://doi.org/10.1021/ic00119a010
Autor:
Seymour H. Koenig, Rodney D. Brown, Shayne M. Childress, Marius P. Valsamis, Marga Spiller, Samuel S. Kasoff, Michael S. Tenner
Publikováno v:
Investigative Radiology. 30:345-353
RATIONALE AND OBJECTIVES. Water content and waterproton relaxation rates are reported for fresh, histologically characterized, surgical specimens of calcified human intracranial meningiomas and compared with results for noncalcified meningiomas from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eba56a77d8e999efaaf3d55037fdaa36
https://doi.org/10.1097/00004424-199506000-00004
https://doi.org/10.1097/00004424-199506000-00004
Autor:
Samuel S. Kasoff, Kent R. Duffy, Michael S. Tenner, Thomas A. Lansen, Marga Spiller, Marius P. Valsamis, Seymour H. Koenig
Publikováno v:
Investigative Radiology. 30:49-55
RATIONALE AND OBJECTIVES Resected meningiomas were examined by relaxometry and light microscopy to evaluate the potential of magnetic resonance imaging (MRI) for identifying histologic subtypes and for discriminating among benign, radiation therapy-i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9c31a4b368fefac815cc5d4f088c33c
https://doi.org/10.1097/00004424-199501000-00008
https://doi.org/10.1097/00004424-199501000-00008
Publikováno v:
The Journal of Chemical Physics. 101:1116-1128
This work presents the anisotropic pseudorotation (APR) model, which is a new dynamic model for the interpretation of experimental nuclear spin‐lattice relaxation times in paramagnetic (S=1) complexes of low symmetry. It comprises two dynamic proce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e15f7f1688a4eace7afca62794715a2e
https://doi.org/10.1063/1.467807
https://doi.org/10.1063/1.467807