Angiogenesis is a multistep process regulated by pro- and antiangiogenic factors. In order to grow and metastasize, tumors need a constant supply of oxygen and nutrients. For growth beyond 1-2 mm in size, tumors are dependent on angiogenesis. Inhibition of angiogenesis is a new cancer treatment strategy that is now widely investigated clinically. Researchers have begun to search for objective m...

OBJECTIVE To report a patient with cat-scratch disease and the associated radiological findings. PATIENT A previously health 10-year-old boy presenting with fever and joint pain. RESULTS The presence of multiple abnormal foci in the bone marrow were noted by magnetic resonance imaging. There was no correlation with either radionuclide or conventional radiographic imaging findings. The patie...

“Less Anatomy—More Physiology” is the message given by nuclear cardiac imaging. Exercise imaging with radionuclide image is a better predictor of morbid events and of prognosis then coronary angiography and exercise testing. Quantitative approaches of myocardial perfusion imaging are of utmost importance for the speedy assimilation of assessment of infarction, myocardial viability on decision m...

Radionuclide hepatobiliary imaging was performed on a patient with a longstanding history of scleroderma who presented with abdominal pain suggestive of biliary disease. Cystic duct patency was documented after 10 min with tracer accumulation in the second portion of the duodenum which failed to progress consistent with the duodenal hypomotility of scleroderma. The patient was given intravenous...

This article deals primarily with the selection criteria, production, and the nuclear, physical, and chemical properties of certain dual-purpose radionuclides, including those that are currently being used, or studied and evaluated, and those that warrant future investigations. Various scientific and practical issues related to the production and availability of these radionuclides is briefly a...