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Occupational exposure to electromagnetic fields from medical sources
High exposures to electromagnetic fields (EMF) can occur near certain medical devices in the hospital environment. A systematic assessment of medical occupational EMF exposure could help to clarify where more attention to occupational safety may be needed. This paper seeks to identify sources of high exposure for hospital workers and compare the published exposure data to occupational limits in the European Union. A systematic search for peer-reviewed publications was conducted via PubMed and Scopus databases. Relevant grey literature was collected via a web search. For each publication, the highest...
Exposition des professionnels médicaux aux rayonnements ionisants et risque de cancer
Les expositions aux rayonnements ionisants (RI) à forte dose ont été reconnues comme facteur de risque de cancers (1). Les effets à long terme des rayonnements ionisants à faibles et moyennes doses restent débattus. De nombreuses études épidémiologiques portant sur le suivi des survivants des bombardements d’Hiroshima et de Nagasaki et sur le suivi des travailleurs exposés aux RI ont montré des augmentations de risque de cancer et de pathologies cardiovasculaires (2). Les professionnels de santé, notamment...
Experimental analysis of radiographer exposure to the static field from a 1.5-T magnetic resonance imaging machine
Introduction. This study measures the exposure of occupational therapists from a 1.5-T magnetic resonance imaging (MRI) machine. Method. A total of 14 time-series on each of the chest, head and hand were taken before and after different MRI procedures. The peak values were noted in each case together with an average of all data recorded in the time-series. Results. The highest exposure recorded was observed on the hand, followed by the head and the chest. The overall maximum exposure (1479.40 mT) recorded was observed on the hand during a change of coil. It was also observed that the recorded exposure...
Staff exposure to pulsed magnetic fields during depression treatment with transcranial magnetic stimulation
Introduction. Transcranial magnetic stimulation or repetitive transcranial magnetic stimulation (TMS/rTMS) are currently used in research and treatments of diseases of the central nervous system, such as recurring depression. Strong electric pulses are used to produce strong pulsed magnetic fields that are directed to the patient's cerebral cortex where the fields induce electric pulses. The pulses may be causing unnecessary exposure of the staff. Method. The MagVenture TMS/rTMS system was investigated, without patient presence, through measurements of magnetic field pulses at varying distances...
Exposure to MRI-related magnetic fields and vertigo in MRI workers
Objectives: Vertigo has been reported by people working around magnetic resonance imaging (MRI) scanners and was found to increase with increasing strength of scanner magnets. This suggests an association with exposure to static magnetic fields (SMF) and/or motion-induced time-varying magnetic fields (TVMF). This study assessed the association between various metrics of shift-long exposure to SMF and TVMF and self-reported vertigo among MRI workers. Methods: We analysed 358 shifts from 234 employees at 14 MRI facilities in the Netherlands. Participants used logbooks to report vertigo experienced...
New models for prediction of micronuclei formation in nuclear medicine department workers
Background : Ionizing radiation causes detrimental health effects such as cancer and genetic damage. The study aim was to determine predictors for micronuclei (MN) occurrence and frequency in peripheral blood lymphocytes of health workers professionally exposed to radiation. Methods : Health workers, age matched, selected for the study on regular check-ups, were divided according to the radiation exposure. The exposed group involved nuclear medicine department employees (54) and the control group comprised workers from other departments (36). Data about workers characteristics and habits, received...
Exposure to static magnetic fields and risk of accidents among a cohort of workers from a medical imaging device manufacturing facility
PURPOSE: To study the association between occupational MRI-related static magnetic fields (SMF) exposure and the occurrence of accidents. METHODS: Recent and career SMF exposure was assessed by linking a retrospective job exposure matrix to payroll based job histories, for a cohort of (former) workers of an imaging device manufacturing facility in the Netherlands. Occurrence of accidents was collected through an online questionnaire. Self-reported injuries due to accidents in the past 12 months, and the first (near) traffic accident while commuting to work and from work were analyzed with logistic...
The Risk of Radiation Exposure To Assisting Staff in Urological Procedures
A Literature Review Fluoroscopy is an integral part of urology and is used for various procedures, such as extra-corporeal shock wave lithotripsy, percutaneous nephrolithotomy, uretero-renoscopy, and ureteral stenting. This technique exposes the urologist and assistants to radiation, which is known to have deleterious effects. Although there have been studies that determine the amount of exposure and the risks to the operating urologist, the risk to the assisting staff remains largely undetermined. A literature review was conducted to determine the risk of radiation exposure during urological procedures...
Occupational exposures among nurses and risk of spontaneous abortion
Objective : We investigated self-reported occupational exposure to antineoplastic drugs, anesthetic gases, antiviral drugs, sterilizing agents (disinfectants), and X-rays and the risk of spontaneous abortion in US nurses. Study Design : Pregnancy outcome and occupational exposures were collected retrospectively from 8461 participants of the Nurses' Health Study II. Of these, 7482 were eligible for analysis using logistic regression. Results : Participants reported 6707 live births, and 775 (10%) spontaneous abortions (<20 weeks). After adjusting for age, parity, shift work, and hours worked...

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