Background: Neutron contamination in our environment can cause harmful biological effects on human body. Therefore, many efforts have been made to construct a neutron dosimeter to estimate the received dose. Objective: To design a simple neutron dosimeter. Methods: The primary dosimeter had 3He as a spherical thermal neutron detector encircled by paraffin 10 cm in radius. Then, the paraffin sph...

BACKGROUND AND PURPOSE While there have been recent reports of brain retention of gadolinium following gadolinium-based contrast agent administration in adults, a retrospective series of pediatric patients has not previously been reported, to our knowledge. We investigated the relationship between the number of prior gadolinium-based contrast agent doses and increasing T1 signal in the dentate ...

Nephrogenic systemic fibrosis is a progressive, potentially fatal multiorgan system fibrosing disease related to exposure of patients with renal failure to the gadolinium-based contrast agents used in magnetic resonance imaging. Because of this relationship between nephrogenic systemic fibrosis and gadolinium-based contrast agents, the U.S. Food and Drug Administration currently warns against u...

We report the thermal behavior of gadolinium foils to be used in magneto thermoelectric generator cells. Magneto thermoelectric generator cell technology exploits the ferromagnetic phase transition of gadolinium to drive the movement of a diaphragm ‘shuttle’ whose mechanical energy is converted to electrical form and which enhances heat transfer through both conduction and convection. Efficient...

AIMS The purpose of this clinical trial was to investigate whether cardiovascular magnetic resonance imaging (CMR) using ferumoxytol (Feraheme™, FH), an ultrasmall superparamagnetic iron oxide nanoparticle (USPIO), allows more detailed characterization of infarct pathology compared with conventional gadolinium-based necrosis/fibrosis imaging in patients with acute myocardial infarction. METHO...

PURPOSE To compare the efficacy of single-dose gadolinium with magnetization transfer contrast (MTC) with that of triple-dose gadolinium in detecting enhancing multiple sclerosis lesions. METHODS Twenty-one patients with multiple sclerosis were examined with MR imaging first with 0.1 mmol/kg gadolinium (single dose) and then, after 24 to 72 hours, with 0.3 mmol/kg gadolinium (triple dose). T2...

OBJECTIVE To identify medications and other potential risk factors, in addition to renal dysfunction, for developing gadolinium-induced nephrogenic systemic fibrosis (NSF). DATA SOURCES Information was obtained from PubMed, International Pharmaceutical Abstracts, Iowa Drug Information Service, and Google Scholar, using the unlimited search terms nephrogenic systemic fibrosis, NSF, nephrogenic...

several mri contrast agents (cas) are used in medical diagnosis that gadolinium (gd3+) is the most widely used as contrast agents. unfortunately, its toxicity is due to its inefficiency. in this review, we discuss about the ability of spions in mri and application in multiple sclerosis diagnosis. superparamagnetic iron oxide nanoparticles (spions) such as magnetite nanoparticles are used as goo...