backgrounds: thallium-201 is produced through 203tl (p, 3n) 201pb 201tl reaction by cyclotron. this radioisotope has known as one of the cyclotron radioisotopes which is used for myocardial perfusion in the coronary artery disease, tl-201 after chemical purification and quality control in the form of 201tl-chlorid is ready to send to the hospitals. materials and methods: in this work the effect...

PURPOSE To determine the values in decibels of retinal sensitivity within the central 26 degrees of the visual field of normal subjects divided into homogenous age groups using the Octopus 1-2-3; to compare the values of retinal sensitivity we have found with those considered normal in the statistical package obtained by a multicenter study performed in 1994 with Octopus 201. METHODS 181 subj...

In this paper, we study the proportion of vanishing elements finite groups. We show that every non-abelian group is bounded below by 1/2 and classify all groups whose proportions attain bound. For symmetric degree at least 5, bound 2327/2520 which best possible.

Purpose Diagnostically useful cardiac MR images are currently obtained using SSFP imaging sequences. Longer acquisition times and breath holding make this sequence unsuitable for use in certain patient populations (eg. children and sick adults). Unfortunately, RT-CMR images have lower spatial and temporal resolution than those obtained using SSFP sequences and are not currently used clinically.

OBJECTIVE This exploratory clinical trial evaluated the safety and clinical activity of a novel, sustained-exposure formulation of ciprofloxacin microparticulates in poloxamer (OTO-201) administered during tympanostomy tube placement in children. METHODS Double-blind, randomized, prospective, placebo- and sham-controlled, multicenter Phase 1b trial in children (6 months to 12 years) with bila...

The aim of the present study was to evaluate the ability of Tl-201 abdominal SPECT to differentiate between chronic focal pancreatitis and pancreatic malignancy. Seventeen patients (12 men, 5 women; mean age, 56 years; 9 pancreatic cancer, 8 chronic pancreatitis) with pancreatic mass were prospectively investigated with Tl-201 abdominal SPECT. In all patients, CT and/or US could not clarify the...