Introduction: Asymptomatic diabetic patients are at increased risk of cardiovascular complications. Myocardial perfusion scan may be effective in risk evaluation in this population. Methods: 106 asymptomatic diabetic patients (age: min: 37, max: 82, mean: 57.73±8.88), including 56 females (52.8%) and 50 males (47.2%) were enrolled in the study. Myocardial perfusion scintigraphy was performed b...

81mKr is widely used as a ventilation agent to diagnose pulmonary embolism (PE). However, 81mKr is expensive, which limits its continuous availability. Technegas can be an alternative ventilation agent with the advantage of being less expensive and available daily. The aim of this study was to compare the value of technegas with that of 81mKr in the detection of PE. Methods: Ninety-two consecut...

We use the Hill function to analyze the dynamics of Tc-99m 2 methoxy-isobutyl-isonitrile (Tc-MIBI) scintigraphy data and to examine the earlier lower extremity microvascular perfusion of diabetic patients without typical clinical symptoms and with the preserved normal ankle-brachial index (ABI).Eighty-eight participants (30 healthy control, 34 diabetic patients, and 24 diabetic patients with pe...

Deep vein thrombosis (DVT) is an important life threatening condition that is difficult to diagnose, particularly in the early stages. Looking for DVT in lower limb can be considered ancillary in suspected cases of pulmonary embolism (PE) indirectly highlighting a cause and effect relationship of a single disease (i.e cause being DVT and effect is the assault on the lung vasculature). Prompt an...

BACKGROUND This study was performed to compare Tl-201 myocardial perfusion single photon emission computed tomography (SPECT) with planar scintigraphy in the diagnosis of coronary artery disease (CAD). METHODS Retrospectively, 240 of 3262 patients, with exercise-redistribution Tl-201 myocardial perfusion scintigraphy performed between January 1990 and October 1997, were analyzed to compare Tl...

Purpose: To study of the effect of garlic on rabbit’s lungs, with the aid of perfusion scintigraphy, after experimentally-induced pulmonary embolism. Methods: Twelve adult rabbits were anesthetized. Prepared macroaggregated albumintechnetium 99m (Tc-MAA) radiopharmaceutical was injected into the ear vein at a dose of 1.5 mCi. Perfusion scintigraphic images of the healthy rabbits’ lungs were tak...

OBJECTIVE To assess lung perfusion patterns in inpatients with acute viral bronchiolitis using quantitative 99mTc-MAA scintigraphy so as to establish an association with clinical and radiological findings. METHODS A comparative, prospective case series study with a focus on diagnosis was carried out in a population of patients with acute viral bronchiolitis admitted to Hospital de Clínicas de...

OBJECTIVE To evaluate the prevalence of myocardial perfusion abnormalities and the possible association between myocardial perfusion defects and traditional coronary artery disease (CAD) risk factors as well as systemic lupus erythematosus (SLE) related risk factors. PATIENTS AND METHODS Female patients with SLE, disease duration >5 years, age 18-55 years, who had used steroids for at least o...

The diagnosis of brain death is a clinical diagnosis that is sometimes made with the help of cerebral perfusion scintigraphy. It is important that all physicians be knowledgeable in the clinical requirements for the diagnosis of brain death, especially the need to establish irreversible cessation of all function of the cerebrum and brain stem. Institutions performing scintigraphy for the evalua...