malignant pleural effusion is a common complication in certain malignancies. pleurodesis is the best option most of the time. the purpose of this study was to compare the choice of belomycin with povidone-iodine, which is not only determined by the efficacy of the agent but also by its cost, accessibility, safety, ease of administration and the number of administrations to achieve a complete re...

Iodine-plutonium-xenon isotope systematics have been used to re-evaluate time constraints on the early evolution of the Earth-atmosphere system and, by inference, on the Moon-forming event. Two extinct radionuclides ((129)I, T1/2=15.6 Ma and (244)Pu, T1/2=80 Ma) have produced radiogenic (129)Xe and fissiogenic (131-136)Xe, respectively, within the Earth, the related isotope fingerprints of whic...

PURPOSE To report the development and validation of a technique of dual tracer single-photon emission CT brain imaging using technetium-99m hexamethylpropyleneamine oxime and iodine-123 iodoamphetamine agents and the application of this technique in patients with a variety of diagnoses. METHODS Contamination between the two isotopes' energy windows was calculated by opening both energy window...

A series of PET studies using phantoms is presented to characterize the imaging and quantitative performance of the positron-emitting iodine isotope 124I. Measurements were performed on the 2D-PET scanner GE 4096+ as well as on the Siemens PET scanner HRR+ operated in both 2D and 3D modes. No specific correction was applied for the gamma-rays emitted together with the positrons. As compared to ...

In rats with 2-week obstructive jaundice the sensitivity to endotoxin was studied and the effect of a single dose of endotoxin on histological development in the kidney, liver and spleen was also investigated. We were tested the effect on accumulation and distribution within organs, of fibrinogen labelled with radioactive iodine I 125. We showed an increased sensitivity to endotoxin in obstruct...

Dihydrosphingosine-4,VH was synthesized via the catalytic tritiation of N-carbobenzoxysphingosine. The tritium activities on carbon atoms 4 and 5 were 47 and 37%, respectively; the remainder of 16% on carbon atoms 6 to 18 was due to double bond migration, or carbon-bonded hydrogen exchange, or both. Radiochemical impurities of high specific activity were formed during the synthesis and were det...

Differentiated thyroid cancer is one of the most common endocrine cancers. Typical standard treatment includes total thyroidectomy with partial lymphadenectomy, then depending on the indications, treatment with iodine isotope 131-I. A prerequisite to conduct the therapy is to obtain endogenic thyroid-stimulating hormone (TSH) stimulation (TSH > 30 µU/ml). We describe two patients with different...

Iodine-125 (125I) is one of the radioisotopes widely used in radiopharmaceuticals for diagnosis and therapy various cancers. Recent reports indicate that there has been shortages world supply this radioiodine isotope. One absolute requirements good must meet radiochemical purity, which generally to be above 95 %, with an efficiency over 90 %. The previous investigation shows purity low does not...

Background: Iodine deficiency and its related disorder such as goiter are endemic in Lorestan province. Following initiation of iodine deficiency control program in 1989, production, distribution and consumption of iodinated salt were begun. This survey was conducted in the framework of national monitoring survey in 2001 to find out the prevalence of goiter and urinary iodine level in order to ...

  Iodine deficiency remains a major health problem in the world, including some parts of Iran. It has been recognized that there is usually a close and inverse relationship between iodine in the soil and water and presence of endemic goiter. Calcium has been suggested as one of goitrogens, though the definite role, extent and mechanism particularly in human have not been studied. Serum protein-...