The conventional wisdom holds that there is no threshold associated with the dangers of radiation. Any radiation above the ambient or background levels is considered to increase the risk of cancer and the relationship is regarded as linear. The risk is in direct proportionWR Ware...
1) Low dose radiation exposure 小剂量受照2) Exposure dose 受照剂量 1. [Methods] Exposure dose in interventional radiology staff were determined by TLD. 目的了解邢台市介入放射工作人员X射线受照剂量的情况,以保护介入放射工作者的身体健康,为规范管理介入放射工作,制订相应的防护管理措施提供依据。 更多...
dose radiation,7 equivalent to the upper limit dose from a full-body spiral CT scan8 and 2–4 Gy as high-dose radiation that causes substantial DNA damage to cells,9,23 4 Gy is close to the LD50 for human whole-body exposure.24 Using gH2AX as a surrogate marker of DNA damage,23 ...
Ionizing radiation exposure from medical diagnostic imaging has greatly increased over the last few decades. Approximately 80% of patients who undergo medical imaging are exposed to low-dose ionizing radiation (LDIR). Although there is widespread consensus regarding the harmful effects of high doses of...
All these molecular changes are indicative of long-term premature dysfunction and suggest a mechanistic explanation to the epidemiological data showing increased risk ofcardiovascular diseaseafter low-dose radiation exposure, the authors conclude.
It has been well-established that acute radiation exposures increase the risk of leukemia. However, it is still unknown whether these leukemia risk estimates could be extrapolated to occupational populations who receive repeated low-dose radiation exposure. The purpose of this study was to estimate qu...
"The 80-milligray dose is equivalent to theradiationexposureduring a medical diagnostic imaging procedure such as a CT scan, which is routinely used in conjunction with stem cell therapy," explains Sergey Leonov, director of the Phystech School of Biological and Medical Physics at MIPT, who also...
The x-ray exposure to patients has become a major concern in computed tomography (CT) and minimizing the radiation exposure has been one of the major efforts in the CT field. Due to plenty high-attenuation tissues in the human chest, under low-dose scan protocols, thoracic low-dose CT (LD...
dose-rate radiation exposure. Here we describe an induced torpor model we developed using the zebrafish. We explored the effects of radiation exposure on this model with a focus on the liver. Transcriptomic and behavioural analyses were performed. Radiation exposure resulted in transcriptomic ...
Every day we are exposed to various sources of ionising radiation, including natural radiation in soil and rock, and important medical procedures like CT scans and x-rays. Low doses of radiation, such as the exposure from medical imaging, are considered safe as they cause little DNA damage an...