Results 11 to 20 of about 735 (123)

Comparing the Performance of Scatter Correction Methods in Cardiac SPECT Imaging with Technetium-99m and Thallium-201 Radioisotopes [PDF]

open access: yesJournal of Medical Physics
Purpose: This study aims to evaluate the performance of dual-energy window (DEW) and triple-energy window (TEW) scatter correction methods in cardiac SPECT imaging with technetium-99m (Tc-99m) and thallium-201 (Tl-201) radioisotopes.
Mahsa Noori-Asl, Maryam Eghbal
exaly   +7 more sources

Calculation of NaI(Tl) detector efficiency using 226Ra, 232Th, and 40K radioisotopes: Three-phase Monte Carlo simulation study [PDF]

open access: yesOpen Chemistry, 2022
Thallium-activated sodium iodide (NaI(Tl)) detectors can be used in gamma cameras, environmental radiation assessments, including radiation emission levels from nuclear reactors, and radiation analysis equipment.
Tekin Huseyin Ozan   +5 more
doaj   +2 more sources

Evaluation of Radioactivity and Heavy Metals Content in a Basalt Aggregate for Concrete from Sicily, Southern Italy: A Case Study

open access: yesApplied Sciences, 2023
In the present paper, an investigation on the natural and anthropic radioactivity and heavy metals content in a basalt aggregate for concrete from Sicily, Southern Italy, was performed as a case study.
Francesco Caridi   +8 more
doaj   +2 more sources

Quantitative gas-phase separation of carrier-free thallium radioisotopes from proton-irradiated [Formula: see text] [PDF]

open access: yesJournal of Radioanalytical and Nuclear Chemistry
Carrier-free [Formula: see text] was thermally separated from proton-irradiated [Formula: see text] . Pressed [Formula: see text] targets were irradiated with [Formula: see text] protons at the IP2 beamline of the high-intensity proton accelerator facility at the Paul Scherrer Institute.
Wilson, Jennifer M.   +5 more
europepmc   +3 more sources

Production, purification, and radiolabeling of the 203Pb/212Pb theranostic pair

open access: yesEJNMMI Radiopharmacy and Chemistry, 2021
Background Lead-212 (212Pb, t1/2 = 10.6 h) and lead-203 (203Pb, t1/2 = 51.9 h) are an element-equivalent, or a matched theranostic radioisotope pair that show great potential for application in targeted radionuclide therapy (TRT) and single-photon ...
Brooke L. McNeil   +6 more
doaj   +2 more sources

Characterization of secondary-radiation background in X-ray flat-panel detectors during scanning proton beam irradiation. [PDF]

open access: yesMed Phys
Abstract Background Secondary‐radiation background (BG) generated in kilovoltage X‐ray flat‐panel detectors (FPDs) under scanning proton beam irradiation has not been thoroughly analyzed. Purpose This study aimed to determine and mathematically model the characteristics of secondary‐radiation BG in FPDs under scanning proton beam irradiation.
Terunuma T   +8 more
europepmc   +2 more sources

Assessment of lower extremities ischemic disease by thallium 201 perfusion scintigraphy in patients with diabetic angiopathy [PDF]

open access: yesVojnosanitetski Pregled, 2011
Background/Aim. Tibial perfusion in diabetic microangiopathy is considered to be a diagnostic problem. A special place in quantifying muscle microcirculatory perfusion belongs to thallium 201 muscle perfusion scintigraphy (201Tl PS).
Čizmić Milica   +2 more
doaj   +1 more source

Evaluation of myocardial infarction by radioisotope myocardial imaging with special reference on thallium-201 myocardial perfusion imaging.

open access: yesJapanese Circulation Journal, 1981
One hundred and three patients with myocardial infarctions were studied with 201-thallium chloride and/or 99m-technetium pyrophosphate myocardial imaging and were followed-up for an average of 23 months. There were 24 false negative cases with 201-thallium chloride, but no deaths or serious complications occurred during the follow-up period in these ...
TOMODA, HARUO, SUZUKI, YUTAKA
openaire   +3 more sources

Radiopharmaceuticals for PET and SPECT Imaging: A Literature Review over the Last Decade

open access: yes, 2022
Positron emission tomography (PET) uses radioactive tracers and enables the functional imaging of several metabolic processes, blood flow measurements, regional chemical composition, and/or chemical absorption.
Crișan, George   +11 more
core   +1 more source

Home - About - Disclaimer - Privacy