Results 211 to 220 of about 2,070 (252)
Some of the next articles are maybe not open access.
Thorium dioxide and the liver—Scintigraphic aspects
Environmental Research, 1979Twenty-four patients followed up by the Portuguese Thorotrast Study Group had liver radioisotopic visualization. A high rate of scans typical of advanced malignancy was found and the authors feel that these patients (knowing they suffer from iatrogenic disease) refuse repeated examinations and laboratory testing, searching medical aid only when ...
E A, Oliveira +4 more
openaire +2 more sources
Management of Cervical Thorium Dioxide Granulomas
Archives of Otolaryngology - Head and Neck Surgery, 1981Thorium dioxide (Thorotrast) was used extensively in the United States from the 1930s through the 1950s for contrast radiography, including cerebral angiography. Its use was discontinued after the pathologic consequences of tumor formation and local fibrotic reaction (thorium dioxide granuloma) were recognized. The latency period for the development of
R B, Stanley, T C, Calcaterra
openaire +2 more sources
Solubility of crystalline thorium dioxide
Radiochimica Acta, 2003SummaryThe solubility of thorium oxides of different crystallinity is investigated at 25°C by different experimental approaches. The dissolution of bulk crystalline ThO2(cr) is a very slow process and the Th(IV) concentrations measured after one year at pH 1-3 in 0.1 and 0.5M HCl-NaCl solutions do not represent equilibrium data.
Neck, V. +5 more
openaire +2 more sources
Archives of Neurology & Psychiatry, 1934
Visualization of intracranial structures is of value in localization and general neurologic diagnosis. In addition to ventriculography with air (Dandy), the visualization of various structures by the injection of colloidal thorium dioxide (thorotrast) into the subarachnoid space has recently been reported.
openaire +1 more source
Visualization of intracranial structures is of value in localization and general neurologic diagnosis. In addition to ventriculography with air (Dandy), the visualization of various structures by the injection of colloidal thorium dioxide (thorotrast) into the subarachnoid space has recently been reported.
openaire +1 more source
Creep of Polycrystalline Thorium Dioxide
Journal of the American Ceramic Society, 1966The creep rate of polycrystalline thorium dioxide is reported for 1400° to 1800°C and for 4000, 7500, and 11,000 psi. The microstructure of deformed specimens contained intergranular voids which formed by the apparent growth and coalescence of pores along the grain boundaries. Grain‐boundary sliding also occurred during creep.
L. E. POTEAT, C. S. YUST
openaire +1 more source
41. The thorium dioxide–thorium tetrafluoride system
J. Chem. Soc., 1958The thorium dioxide --thorium tetrafluoride system has been studied by x- ray diffraction. Thorium tetrafluoride dissolves in thoria to the extent of about 25 mole%, the cell constant a increasing from 5.586 to 5.633 kX. The arrangement of the anions in these mixed crystals is discussed.
openaire +1 more source
HEPATOSPLENOGRAPHY WITH THORIUM DIOXIDE SOL
Journal of the American Medical Association, 1933Although the Council on Pharmacy and Chemistry of the American Medical Association in December, 1932, reported unfavorably on the intravenous use of thorium dioxide, 1 it did not entirely condemn its use but urged great caution therein. The study of the Council did not reveal serious ill effects, so far as clinical experience was concerned, with the ...
WALLACE M. YATER, LAURENCE S. OTELL
openaire +1 more source
2015
Radioactive contrast agent introduced in 1928 and mainly used for cerebral angiography until the 1950s.
openaire +1 more source
Radioactive contrast agent introduced in 1928 and mainly used for cerebral angiography until the 1950s.
openaire +1 more source