| dc.description.abstract | ÖSSZEFOGLALÁS
Hazánk állatorvosi lovaspraxisaiban egyre inkább széles körben elterjedtek a
direkt digitális radiográfiás rendszerek, amelyek a mobil, kompaktabb és könnyebb röntgenberendezésekkel karöltve kétségtelenül az elsővonalbeli képalkotó
lehetőséget jelentik az állatorvosok számára, legyen szó diagnosztikai célú vagy
adás-vételi röntgenvizsgálatról. A szerzők célja az irodalmi és jogszabályi háttér
ismertetését követően valós, terepi körülmények között, önkéntesek segítségével
elvégzett mérésekkel igazolni a sugárvédelmi intézkedések fontosságát, valamint
megbecsülni egy röntgenvizsgálat során az állatorvost, ill. az asszisztáló személyeket érintő sugárdózist.
SUMMARY
During the radiographic examinations the veterinarian is often assisted by
untrained personnel. This can contribute to a high number of acquisitions and
sometimes unnecessary exposure to ionizing radiation, without knowledge and
understanding of the personal dose equivalent values and risks. Although national
regulations prohibit handholding the generator and holding the detector without
leaded gloves, these practices are widespread.
Our aim was to review relevant literature and to highlight the importance of
radiation safety practices for equine veterinarians and assistants when using
portable X-ray systems and to estimate the personal dose equivalent values of
personnel involved in radiographic examination.
Radiation dose measurements were carried out during pre-purchase radiographic examinations on three horses, using calibrated electronical personal
dosimeters positioned over and under lead aprons and gloves of the veterinarian
acquiring radiographs, the assistants holding the detector and the horse. Mean
personal dose equivalent values of the veterinarian, the assistants holding the
detector plate or the horse were calculated.
Mean exposure measurements obtained over the lead gloves and over the
lead apron of the veterinarian ranged between 0.1-0.4 μSv and 0.1-2.1 μSv,
respectively. The personal dose equivalent value of the person holding the horse
was consistently 0 μSv under the lead apron and reached a total mean value of
2.7 μSv for pre-purchase examinations when the dosimeter was over the protective
clothing. The personal dose equivalent values were the highest for the person
holding the detector, with a mean of 1.9 μSv over the lead apron and 7.6 μSv over
the lead gloves when obtaining caudo-cranial radiograph of the stifle.
In conclusion, this study demonstrates the importance of compliance with
international radiation safety recommendations and national regulations, in
minimising exposure to ionising radiation, and also highlights the need for an
updated, tailored legal environment. | en_US |
