On 11 March 2011, the Fukushima nuclear disaster shocked the world. A 9.0 magnitude earthquake induced a tsunami, which then shut down the power supply of cooling system of the nuclear plant. The nuclear reactor exploded due to overheat and hydrogen accumulation. Radioactive materials were released and plutonium was detected positive in the soil of the power plant. It is the most severe nuclear...

INTRODUCTION The use of intraoperative CT-guidance during the percutaneous treatment of trigeminal neuralgia has become increasingly popular due to the greater ease of foramen ovale cannulation and decreased procedure times. Concerns regarding radiation dose to the patient, however, remain unaddressed. We sought to compare the emitted radiation dose from fluoroscopy with intraoperative CT for t...

A brief review of the literature precedes the presentation of a radiation behavioral teratology study. The various types of radiation and the units of measure used in radiation biology are discussed. The concept of the radiation-induced teratogenic "triad" of growth retardation, malformation, and death is presented. A discussion of stage- and dose-dependent sensitivity to prenatal irradiation i...

A B O U T ten years ago, when avialion medicine developed a seri,ous interest in the problem of cosmic ray ,hazards in flight at the top of and outside the atmosphere, it became common practice to express cosmic ray intensities in terms of tissue ionization dosages, that is, in roentgens equivalent physical ( rep) . This expedited ~he interpretation of the ~;lata of the physicists inasmuch as e...

Background: This study is conducted with the aim of determining the knowledge, attitude and behaviors of the personnel on radiation safety, who are exposed to radiation and working in a university hospital in Istanbul.  Materials and Methods: In this research, which is descriptive, a questionnaire that consists of 20 questions conducted to 101 healthcare personnel who are working with radiation...

The availability of computed radiography has opened the possibility of using reduced dosage for radiographs in clinical settings and reducing the retake rate. A prospective controlled study was carried out over a period of four months comparing conventional X-rays and computed radiography. The aim was to assess if computed radiography at 50% normal dosage would result in films of adequate quali...

Various biological effects are associated with radiation exposure. Irradiated cells may elevate the risk for genetic instability, mutation, and cancer under low levels of radiation exposure, in addition to being able to extend the postradiation side effects in normal tissues. Radiation-induced bystander effect (RIBE) is the focus of rigorous research as it may promote the development of cancer ...

Dexmedetomidine is a highly selective α2-adrenoceptor agonist that demonstrates anxiolytic and analgesic properties without inducing respiratory compromise, which makes it a suitable agent for procedural sedation and imaging studies. In our current case reports, intravenous dexmedetomidine infusion was used to provide sedation to 2 pediatric patients over more than 20 sessions of radiation ther...

Groups of embryonate eggs were given 250, 500, 750, and 1000 r of x-radiation. 18 hours later, these 4 groups, together with a control group, were injected intra-allantoically with influenza A virus. Radiation at all dosage levels caused significant changes in the infectivity titre curves during the next 90 hours. The most striking alterations were the prolonged incubation period and the unifor...

Radiation damage to biological systems is determined by the type of radiation, the total dosage of exposure, the dose rate, and the region of the body exposed. Three modes of cell death-necrosis, apoptosis, and autophagy-as well as accelerated senescence have been demonstrated to occur in vitro and in vivo in response to radiation in cancer cells as well as in normal cells. The basis for cellul...