Results 241 to 250 of about 134,172 (292)
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Minimally Invasive Therapy & Allied Technologies, 2002
Intracoronary stent placement following PTCA improves the long-term outcome of the treated patient, but in-stent restenosis remains problematic, especially in smaller vessels and longer lesions. Intravascular brachytherapy is a rapidly evolving field of research and clinical treatment, with a number of different irradiation techniques being used ...
D.R. Fischell +4 more
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Intracoronary stent placement following PTCA improves the long-term outcome of the treated patient, but in-stent restenosis remains problematic, especially in smaller vessels and longer lesions. Intravascular brachytherapy is a rapidly evolving field of research and clinical treatment, with a number of different irradiation techniques being used ...
D.R. Fischell +4 more
openaire +2 more sources
The Annals of Thoracic Surgery, 1974
In this study, radioactive venography using a gamma scintillation camera was applied experimentally in 10 dogs and clinically in 12 patients with signs of venous disorders of the superior or inferior vena caval system. The method proved to be reliable in detecting venous obstruction, displacement of the veins, or development of collaterals.
Papadimitriou, J. +4 more
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In this study, radioactive venography using a gamma scintillation camera was applied experimentally in 10 dogs and clinically in 12 patients with signs of venous disorders of the superior or inferior vena caval system. The method proved to be reliable in detecting venous obstruction, displacement of the veins, or development of collaterals.
Papadimitriou, J. +4 more
openaire +2 more sources
High efficiency 4H-SiC betavoltaic power sources using tritium radioisotopes
, 2016Realization of an 18.6% efficient 4H-silicon carbide (4H-SiC) large area betavoltaic power source using the radioisotope tritium is reported. A 200 nm 4H-SiC P+N junction is used to collect high-energy electrons. The electron source is a titanium tritide
C. Thomas, Samuel Portnoff, M. Spencer
semanticscholar +1 more source
Transfusion, 2005
The transfusion of radiolabeled red cells and platelets (PLTs) allows for the accurate determination of in vivo recovery and survival after subjecting the cells to an experimental collection, processing, or storage system. The techniques utilized in these protocols have undergone refinement over the past several decades, and these improvements have ...
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The transfusion of radiolabeled red cells and platelets (PLTs) allows for the accurate determination of in vivo recovery and survival after subjecting the cells to an experimental collection, processing, or storage system. The techniques utilized in these protocols have undergone refinement over the past several decades, and these improvements have ...
openaire +2 more sources
Radioactivity and Radioisotopes
2010Radioactivity was discovered in 1896 by Henri Becquerel, when he found that a mixture of uranium salts emitted a mysterious penetrating radiation that passed through thin sheets of metal. Since then, radioactivity has been applied in many diverse areas within the fields of industry, agriculture, medicine, and the military.
Rajesh Duggirala +2 more
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Radiation Protection Dosimetry, 2015
The purpose of this study is to evaluate the effectiveness of personal radiation shields currently worn in hospital and other diagnostic environments. This study was performed with four different radioisotopes; (18)F, (99m)Tc, (124)I and (131)I.
P. Deb, R. Jamison, L. Mong, Paul U
semanticscholar +1 more source
The purpose of this study is to evaluate the effectiveness of personal radiation shields currently worn in hospital and other diagnostic environments. This study was performed with four different radioisotopes; (18)F, (99m)Tc, (124)I and (131)I.
P. Deb, R. Jamison, L. Mong, Paul U
semanticscholar +1 more source
Liver Studies with Radioisotopes
Australasian Radiology, 1976SummaryRadionuclide scanning of the liver is both sensitive and non‐traumatic and has become a widely accepted method of investigation of the hepatobiliary system. It is essential to understand the anatomical, physiological and pathological basis of liver scanning using various techniques and radiopharmaceuticals. This paper reviews the methodology and
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Generation of Radioisotopes with Accelerator Neutrons by Deuterons
, 2013A new system proposed for the generation of radioisotopes with accelerator neutrons by deuterons (GRAND) is described by mainly discussing the production of 99Mo used for nuclear medicine diagnosis.
Y. Nagai +25 more
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Theory of radioisotope scanning
The International Journal of Applied Radiation and Isotopes, 1958Abstract The visualization of radioisotope distributions is an increasingly important application of radioisotopes. A general relation is derived, valid for any detecting system, yielding the optimal radioisotope content as a function of resolution, detector efficiency, time duration of scan, and dimensions of the object being scanned.
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The International Journal of Applied Radiation and Isotopes, 1957
F K, BAUER, E T, YUHL
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F K, BAUER, E T, YUHL
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