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Osteoporosis - radiologic aspects
DAŠEK, Oldřich
OSTEOPOROSIS is a serious generalised bone disease which results in their increased fragility. It appears in the highest rate at older age. Goal Getting familiar with osteoporosis and comparing radiation doses of patients in case of kyphoplastics and vertebroplastics. Comparison of doses on different equipment and among different methods. Effort to cut down doses for both a patient and attending staff on the performance. Methodology In 2007, care was given to 46 patients in our station using percutaneous vertebroplastics and kyphoplastics. An angiographic set (Siemens - axiom artis) and a mobile C-arm (Ziehm - exposcope 8000) were used to navigate the action for 30 and 16 patients, respectively. The measured doses were assessed for the patients, average doses for vertebroplastics and for kyphoplastics were calculated, and these were compared one against the other. We also assessed the dose in relation to the number of treated vertebra for a single patient and anatomical zones of position of these vertebrae. And finally, we determined the average doses for the instruments and compared them one against the other. Results The lowest doses have been achieved in treating vertebral bodies of TH spine, and the highest value appeared in the performance when three vertebrae have been treated together. The results from comparison of the average dose on both instruments show that the average dose of a patient navigated with the angiographic set is by some 55 % lower against patients with the C-arm used. The value measured for kyphoplastics is by some 50 % lower than for vertebroplastics. Conclusion The results of the study show that kyphoplastics is more desirable concerning the dose, but the economic view is against, as well that it suits rather to acute fractures. The benefit of this work is the comparison of the doses for the surgeries on two types of instruments. We have shown that the selection of the suitable instrument can have impact of the resulting dose for the patient, as well the dose for attending staff. In our case, the effect was up to 55%. The outcome will be the effort to perform the maximum of these actions using the angiographic set and to minimise the total dose.
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