PURPOSE To compare CT and radionuclide imaging of osmotic blood-brain barrier disruption. To develop a quantitative method for imaging osmotic blood-brain barrier disruption and to see if iopamidol could be safely given intravenously in conjunction with blood-brain barrier disruption. METHODS Forty-five blood-brain barrier disruption procedures were imaged with CT and radionuclide scans. The ...

Consumption of fish containing elevated levels radionuclides can lead to undesirable health effects for consumers. People in the Singida Municipality harvest from lakes and ponds granite rocks which are linked with hazardous radioisotopes that may be bio-concentrated by fishes they consume. Currently, no study has ascertained these environments. This was carried out analyse radioactivity 226Ra,...

OBJECTIVE Adenosine, which has been used for a myocardial perfusion scan, shows rapid clearance from blood because of its short half-life of <10 seconds. This simulation study evaluates influences of modes of radionuclide injection on ventricular adenosine concentration when one intravenous injection line is used. METHODS Assuming that radionuclide injection is a unit impulse, time-activity c...

a reconnaissance study has been made on the distribution of 238u, 232th, 40k, 137cs andgeochemical features in soil and sediment samples at various locations on the coast of bushehr in the persiangulf. in this study a gamma-ray spectrometer based on a high purity germanium detector and a pc basedmca and x-ray fluorescence (xrf) method were used. estimation of the measured radionuclide contentha...

background: the incorporation of thallium-201 into 8-hydroxyquinoline was targeted for cell labeling due to interesting physical properties and wide availability of this nuclide as a single photon emission computed tomography (spect) radionuclide. materials and methods: thallium-201 (t1/2=3.04 d) in tl+ form was converted to tl3+ cation in presence of o3/6m hcl and di-isopropyl ether, controlle...

background: owing to its favourable decay characteristics 177lu [t1/2= 6.71 d, eβ(max)= 497 kev] is an attractive radionuclide for various therapeutic applications. ethylene diamine tatramethylene phosphonate (edtmp) is one of the most widely used ligands which form stable complexes with various radionuclides and all the complexes. materials and methods: enriched 176lu2o3 was dissolved in 0.1 n...

OBJECTIVE This continuing education article reviews radionuclide bone therapy agents that are available commercially and introduces agents that are being evaluated for future use. Currently these agents are used to provide pain palliation from metastases to bone. Future applications may include adjuvant therapy to surgery or external beam treatment. After reading this paper, the reader should b...

BACKGROUND AND PURPOSE Radiologic evaluation of CSF leaks is a diagnostic challenge that often involves multiple imaging studies with the associated expense and patient discomfort. We evaluated the use of screening noncontrast high-resolution CT in identifying the presence and site of CSF rhinorrhea and otorrhea and compared it with contrast-enhanced CT cisternography and radionuclide cisternog...

In 100 children with suspected left to right shunts the ratio of pulmonary to systemic flow was measured both by oximetry and first pass radionuclide angiography. The pulmonary time activity curve from the radionuclide study was analysed by the method of gamma variate fits. There was strong correlation between the two techniques; weaker correlation was found when the shunt was at atrial rather ...

The aim of this overview article is to present the current possibilities of radionuclide scintigraphic small intestine imaging. Nuclear medicine has a few methods-scintigraphy with red blood cells labelled by means of (99m)Tc for detection of the source of bleeding in the small intestine, Meckel's diverticulum scintigraphy for detection of the ectopic gastric mucosa, radionuclide somatostatin r...