Search

Your search keyword '"Goldberg, I"' showing total 3,056 results
Start Over Author "Goldberg, I"
3,056 results on '"Goldberg, I"'

234. Management of low grade glioma: interest of PET images

Author

Société belge de Neurochirurgie (March 2001), De Witte, Olivier, Goldberg, I, Goldman, Serge, Brotchi, Jacques, Société belge de Neurochirurgie (March 2001), De Witte, Olivier, Goldberg, I, Goldman, Serge, and Brotchi, Jacques

Abstract

info:eu-repo/semantics/nonPublished

Published
2001

235. Positron emission tomography with injection of methionine as a prognostic factor in glioma.

Author

De Witte, Olivier, Goldberg, I, Wikler, D, Rorive, Sandrine, Damhaut, Philippe, Monclus, Michel, Salmon, Isabelle, Brotchi, Jacques, Goldman, Serge, De Witte, Olivier, Goldberg, I, Wikler, D, Rorive, Sandrine, Damhaut, Philippe, Monclus, Michel, Salmon, Isabelle, Brotchi, Jacques, and Goldman, Serge

Abstract

OBJECT: Positron emission tomography with L-[methyl-11C]methionine (MET-PET) provides information on the metabolism of gliomas. The aim of this study was to determine the predictive value of MET-PET in the treatment of patients with gliomas. METHODS: Since 1992, 85 patients with a World Health Organization (WHO) classification-verified glioma underwent PET studies in which MET was injected before (74 cases) or after treatment (11 cases). Analysis of PET data was conducted by the same investigator using two scales: a qualitative visual grading scale and a quantitative scale (ratio between tumor uptake and normal brain uptake, classified on a seven-level scale). Uptake of MET was present in 98% of gliomas. The investigator judged this uptake to be moderate to very high based on visual inspection (qualitative scale). For all grades of gliomas, a visual grade of 3 was statistically associated with a shorter patient survival period (p < 0.005). The tumor/normal brain uptake ratio was significantly influenced by the histological grade of the tumor. A statistically poor outcome was demonstrated when this ratio was higher than a threshold of 2.2 for a WHO Grade II tumor and 2.8 for WHO Grade III tumor. For Grade II and III tumors, oligodendrogliomas had a higher uptake of MET than astrocytomas. CONCLUSIONS: Uptake of MET was present in 98% of the gliomas studied. A high uptake is statistically associated with a poor survival time. The intensity of MET uptake represents a prognostic factor for WHO Grade II and III tumors considered separately., Journal Article, Research Support, Non-U.S. Gov't, info:eu-repo/semantics/published

Published
2001

236. Ferromagnetic resonance studies of lunar core stratigraphy

Author

Housley, R. M, Cirlin, E. H, Goldberg, I. B, and Crowe, H

Subjects
Lunar And Planetary Exploration
Abstract

We first review the evidence which links the characteristic ferromagnetic resonance observed in lunar fines samples with agglutinatic glass produced primarily by micrometeorite impacts and present new results on Apollo 15, 16, and 17 breccias which support this link by showing that only regolith breccias contribute significantly to the characteristic FMR intensity. We then provide a calibration of the amount of Fe metal in the form of uniformly magnetized spheres required to give our observed FMR intensities and discuss the theoretical magnetic behavior to be expected of Fe spheres as a function of size. Finally, we present FMR results on samples from every 5 mm interval in the core segments 60003, 60009, and 70009. These results lead us to suggest: (1) that secondary mixing may generally be extensive during regolith deposition so that buried regolith surfaces are hard to recognize or define; and (2) that local grinding of rocks and pebbles during deposition may lead to short scale fluctuations in grain size, composition, and apparent exposure age of samples.

Published
1976

238. Analysis of the Vertical Temperature Profile Radiometer (VTPR) radiometric problem

Author

Goldberg, I. L

Subjects
Instrumentation And Photography
Abstract

Variations in bias radiation, on the detector as a function of scan mirror position, are reported for the VTPR instruments presently in orbit. Tests in the laboratory show that this bias radiation disappears when optical baffles are added. A detailed analysis explains quantitatively the observed bias variation which is due to the extraneous field-of-view of the detector, and the variation in magnitude of the far field-of-view solid angle as a function of mirror position.

Published
1974

242. Pet with methione as a prognostic factor in glioma

Author

American Association of Neurological Surgeons (April 2000: San Francisco), De Witte, Olivier, Goldberg, I, Goldman, Serge, Brotchi, Jacques, American Association of Neurological Surgeons (April 2000: San Francisco), De Witte, Olivier, Goldberg, I, Goldman, Serge, and Brotchi, Jacques

Abstract

info:eu-repo/semantics/nonPublished

Published
2000

250. Meteorological infrared instruments for satellites

Author

Goldberg, I. L

Subjects
Instrumentation And Photography
Abstract

Meteorological spaceborne IR instruments associated with NASA satellites, discussing various Tiros and Nimbus instruments

Published
1969

Catalog

Books, media, physical & digital resources
See catalog results