Results 221 to 230 of about 51,702 (268)

Fluorine-18-fluorodeoxyglucose uptake in pneumonia.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 1998
Whole-body PET imaging with 18F-fluorodeoxyglucose (FDG) has been shown to be effective in distinguishing benign and malignant pulmonary disease. Mild elevations in FDG uptake with standardized uptake values (SUVs) less than 2.5 have been reported in benign lesions, including pneumonia.
Luketich, JD, Keenan, RJ, Townsend, DW, Meltzer, CC, Kapucu, LÜTFİYE ÖZLEM   +4 more
openaire   +2 more sources

The value of fluorine-18 for scanning bone tumours

Clinical Radiology, 1969
The mechanisms of uptake of fluorine and strontium by normal as well as abnormal bone are described and the advantages of fluorine for scanning are emphasized. The scanning technique is discussed and a method for accurate reduction in size of the radiographic image to correspond exactly with that of the scan image is described.
C L, Harmer, J E, Burns, A, Sams, M, Spittle   +3 more
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A NEW SYNTHESIS OF FLUMAZENEL SUITABLE FOR FLUORINE-18 LABELING

Organic Preparations and Procedures International, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
BROGGINI, GIANLUIGI, ORLANDI M, TURCONI A, ZONI C.   +3 more
openaire   +2 more sources

SPECT imaging of fluorine-18.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 1995
The objective of this work was to determine the potential clinical usefulness of SPECT to image 511-keV annihilation photons.A triple-headed gamma camera equipped with ultra-high-energy collimators was used to image 18F. Sensitivity measurements were carried out and the FWHM and FWTM were determined in air and for a unit-density scattering medium ...
P K, Leichner, H T, Morgan, K P, Holdeman, K A, Harrison, F, Valentino, R, Lexa, R F, Kelly, W G, Hawkins, G V, Dalrymple   +8 more
openaire   +1 more source

The standardisation of fluorine-18.

Australasian physical & engineering sciences in medicine, 1996
The Australian Nuclear Science and Technology Organisation (ANSTO) maintains and disseminates the Australian standards of activity measurement. The standards include all nuclear medicine gamma-emitters and pure positron emitters. Calibration factors for the ANSTO 4 pi ionisation chamber for pure positron emitters have been traditionally determined from
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A radiosynthesis of fluorine-18 fluoromisonidazole.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 1989
A new preparation of [18F]fluoromisonidazole [1H-1-(3-[18F] fluoro-2-hydroxypropyl)-2-nitroimidazole] is presented as a two-step, two-pot reaction sequence. The method is useful for the production of 20-30 mCi quantities of this compound from [18F]fluoride, available in 40% radiochemical yield at end of bombardment (EOB) with a specific activity (nca ...
J R, Grierson, J M, Link, C A, Mathis, J S, Rasey, K A, Krohn   +4 more
openaire   +1 more source

Production of carrier-free fluorine-18

The International Journal of Applied Radiation and Isotopes, 1965
Abstract A rapid and effective procedure for the preparation of carrier-free fluorine-18 is described. The F 18 is produced by neutron irradiation of lithium carbonate and is separated by dissolving the material in acid and distilling off the hydrogen fluoride solution.
C.C. Thomas, J.A. Sondel, R.C. Kerns
openaire   +1 more source

Fluorine-18 labeling of proteins.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 1987
Two fluorine-18-labeled reagents, methyl 3-[18F]fluoro-5-nitrobenzimidate and 4-[18F]fluorophenacyl bromide, have been prepared for covalent attachment of fluorine-18 to proteins. Both reagents can be prepared in moderate yields (30-50%, EOB) in synthesis times of 50-70 min.
M R, Kilbourn, C S, Dence, M J, Welch, C J, Mathias   +3 more
openaire   +1 more source

Chemistry of fluorine-18 radiopharmaceuticals

International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes, 1986
M S, Berridge, T J, Tewson
openaire   +2 more sources

Myocardial viability studies using fluorine-18-FDG SPECT: a comparison with fluorine-18-FDG PET.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 1997
Multidetector SPECT systems equipped with a high-energy, or 511-keV collimator, have been proposed to offer a less expensive alternative to PET in myocardial viability studies with [18F]FDG. The objectives of this investigation included: (a) measuring the physical imaging characteristics of SPECT systems equipped with either a high-energy general ...
E Q, Chen, W J, MacIntyre, R T, Go, R C, Brunken, G B, Saha, C Y, Wong, D R, Neumann, S A, Cook, S P, Khandekar   +8 more
openaire   +1 more source