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Radioisotopes

Known as: Radionuclide, Radionuclides, Radioactive Isotopes 
An unstable form of a chemical element that releases radiation as it breaks down and becomes more stable. Radioisotopes may occur in nature or be… 
National Institutes of Health

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59 ironActinoid Series ElementsCHROMIUM CR-51Ca45 isotope
Aspects of radionuclide imagingDiscipline of Nuclear MedicineElementsElements, Radioactive

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Papers overview

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Highly Cited
1985
Highly Cited
1985
Intrinsic washout rates of thallium-201 in normal and ischemic myocardium after dipyridamole-induced vasodilation.
Infusion of dipyridamole has been suggested as an alternative to exercise stress for myocardial perfusion imaging for detection… 
Highly Cited
1984
Highly Cited
1984
Asynchronous left ventricular diastolic filling in patients with isolated disease of the left anterior descending coronary artery: assessment with radionuclide ventriculography.
To study the relationship between global and regional filling of the left ventricle, we conducted resting gated radionuclide… 
Highly Cited
1982
Highly Cited
1982
Resting early peak diastolic filling rate: a sensitive index of myocardial dysfunction in patients with coronary artery disease.
Resting first-pass radionuclide angiocardiography (RNA) was used to derive left-ventricular (LV) peak diastolic filling rates… 
Highly Cited
1982
Highly Cited
1982
Lymphoscintigraphy with Tc-99m-labeled dextran.
Current agents for lymphoscintigraphy have limitations because of slow migration of the colloidal tracers from the injection site… 
Highly Cited
1981
Highly Cited
1981
Influence of Resting Left Ventricular Function on the Left Ventricular Response to Exercise in Patients with Coronary Artery Disease
First-pass radionuclide angiocardiography was used to assess the left ventricular response to submaximal exercise in 150 patients… 
Highly Cited
1980
Highly Cited
1980
The Detection of Coronary Artery Disease with Radionuclide Techniques: A Comparison of Rest–Exercise Thallium Imaging and Ejection Fraction Response
Fifty–two patients with suspected coronary artery disease underwent coronary angiography, thallium-201 myocardial imaging, and… 
Highly Cited
1977
Highly Cited
1977
An experimental comparison of radioactive labels with potential application to lymphocyte migration studies in patients.
The suitability of two radionuclides (99mTc, 111In) for labelling lymphocytes have been evaluated in rats by comparison with a… 
Review
1976
Review
1976
Comparison of enzyme, clinical, radiographic, and radionuclide methods of detecting bone metastases from carcinoma of the prostate.
Patients (219) with prostatic adenocarcinoma were classified on the basis of whether or not their bone scans were positive for… 
Highly Cited
1948
Highly Cited
1948
A Geiger-Muller counter for measuring the beta-ray activity of liquids, and its application to medical tracer experiments.
A G-M counter of the jacketed tube type for β-ray measurements on liquid samples is described, together with a convenient means… 
Highly Cited
1948
Highly Cited
1948
Dosage determination with radioactive isotopes.