Introduction: Nuclear Scintigraphy is a highly sensitive, alternative imaging modality used in human and veterinary medicine. This modality involves the administration of a radioactive substance (radioisotope) to a patient. Generally, the radioisotope is labeled to a specific compound. This labeled combination is known as a radiopharmaceutical. These radiopharmaceuticals are formulated in vario...

hgs. 144. 72s.) Lonidon: Baidiirc, 1Tindall & Cox, 1963. Dit. \xivlter speaks wvitlh authority onl thiis relatively new mietlhodi of inivestigationi, as he hlas t)een conicernled in its developmenlt from almost the be(ginning. lie gives a clear accounlt of the technique, dealinig xvith equipmenit, choice of radioactive test agent, anld interpretationi of renograms. He has included maniy example...

Over 100,000 implantable cardiac pacemakers are currently being used to rehabilitate patients with heart block. The chemical batteries powering these pacemakers usually fail within a few years. A variety of nuclear batteries with the potential of providing long-lived (10-20 years) pacemaker power, are under development. This paper reviews the status of this development. Nuclear powered pacemake...

Nuclear medicine would be greatly aided if compounds were available to promote the excretion of unwanted radioisotopes from biological systems. Such preparations would make possible greater use of long-lived radionuclides in medicine and would reduce some of the environmental hazards associated with nuclear energy. The biochemistry of radioisotope excretion is complicated because there are so m...

Evaluation of thyroid nodules remains a challenge for primary care physicians. To include or exclude the presence of malignancy in a thyroid nodule, radioisotope scan, ultrasound, and fine-needle aspiration biopsy of the thyroid generally are used. The objectives of this study were to determine the utility and cost effectiveness of fine-needle aspiration biopsy of solitary thyroid nodules in a ...