Patients with hypertension may present with symptoms of angina with or without coronary artery disease (CAD). The pretest likelihood for coronary artery disease increases with concomitant diabetes mellitus, hypercholesteremia, and other risk factors. Standard noninvasive evaluation in patients with a high likelihood of CAD includes stress (exercise or persantine) electrocardiography and SPECT t...

  Introduction: Poor sensitivity and poor signal to noise ratio because of low injected thallium dose and presence of scattered photons are the main problems in using thallium in scintigraphic imaging of the heart. Scattered photons are the main cause of degrading the contrast and resolution in SPECT imaging that result in error in quantification. Thallium decay is ve...

Technical assistance was given to Compañía Azucarera Hondureña, S.A. (Agro-Industrial Co.), Honduras, Central America, to determine if a campaign against noxious rodents to agriculture crops was needed. Several trappings were carried out at different places using snap traps to determine the population structure of rodents associated with the crop, and live traps to determine the index or densit...

Mailing address: Paulo Roberto Dutra da Silva Rua General Artigas, 395/101 22441-140 Rio de Janeiro, RJ Brazil E-mail: [email protected] In the last fifteen years several randomized studies were published comparing percutaneous coronary intervention (PCI) and coronary artery bypass graft surgery (CABG) in patients with stable angina and multivessel coronary artery disease1-3. Few studies...