The purpose of this study was to investigate the impact of temperature on the release of PET-bottle constituents into water and to assess the potential health hazard using in vitro bioassays with bacteria and human cell lines. Aldehydes, trace metals and other compounds found in plastic packaging were analysed in PET-bottled water stored at different temperatures: 40, 50, and 60°C. In this stud...

UNLABELLED We investigated radiation exposure of patients undergoing whole-body 18F-FDG PET/CT examinations at 4 hospitals equipped with different tomographs. METHODS Patient doses were estimated by using established dose coefficients for 18F-FDG and from thermoluminescent measurements performed on an anthropomorphic whole-body phantom. RESULTS The most relevant difference between the proto...

The PET procedure involves the administration of short-lived positron emitting radioisotopes to the body. The choice of PET as diagnostic method is increasing and the inclusion of PET systems as part of an imaging center is becoming more widespread. In our PET center, the number of clinical 18F-FDG PET scans has increased almost to 5000 studies per year. The increasing demand of PET studies for...

It is widely accepted that coregistration of anatomical information improves the diagnostic value of functional imaging. At the moment, this is reflected in the success of hybrid scanners using PET and CT imaging. But the combination of PET and MR imaging may also offer advantages, such as higher soft tissue contrast in the MR anatomical images, real simultaneous acquisition, and minimum radiat...

• Research shows that dog owners made 8% and cat owners 12% fewer visits to the doctor than non-pet owners in the previous year. • Pet owning pensioners make up to 21% fewer visits to the doctor than non-pet owners. • Children from households with pets have stronger immune systems and took fewer days off sick from school, receiving up to 18 extra half days schooling per year. This was most pron...

Allergic diseases are frequent in children and their prevalence and severity differ in the different regions of the world. The association between pet ownership in childhood and subsequent asthma and sensitization is very controversial.In our survey conducted with standardized method (International Study of Asthma and Allergies in Childhood), 3200 children 6-7 years old were questioned regardin...

Traditionally, the cancer risks associated with radon,environmental tobacco smoke (ETS), and similar indoor residential exposures have been evaluated through either laboratory experiments in rodents or epidemiology studies in people. Laboratory studies have the advantage of being controlled experiments, but their utility as estimators of human risk is limited by the uncertainties of extrapolati...

Currently, positron emission tomography with computerized tomography (PET-CT) is the most sensitive technique for detecting extracranial metastases in non-small cell lung cancer (NSCLC). It has been reported that there is a correlation between the maximal standardized uptake value (SUV(max)) of primary tumors and prognosis in patients with NSCLC. The effect of sunlight exposure on PET-CT SUV(ma...

A 63-year-old painter and varnisher presented with a 4-year history of work-related contact dermatitis affecting the dorsal surfaces of his hands, forearms, and face. He reported itching, burning and oozing when he occupationally handled epoxy resin systems. Patch testing was performed by the use of small Finn Chambers® on Scanpor® tape (SmartPractice Europe, Reinbek, Germany) with the baseline...

Accelerated weathering exposures were performed on poly(ethylene-terephthalate) (PET) films. Longitudinal multi-level predictive models as a function of PET grades and exposure types were developed for the change in yellowness index (YI) and haze (%). Exposures with similar change in YI were modeled using a linear fixed-effects modeling approach. Due to the complex nature of haze formation, mea...