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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Monitoring patient´s radiation load during mamograph screening
 HÁJKOVÁ, Michala
The development of mammography equipment made it possible to reduce the amount of radiation necessary for mammography exams. On the other hand the demands on image resolution have been growing, which means that the average amount of radiation has actually increased. It is necessary to decrease the irradiation amount during screening as much as possible without jeopardising image quality. When using a modern mammography system, the medium dose of irradiation absorbed by the gland is approximately 1 {--} 1.5 mGy for each picture. Patients can undergo as many as 25 mammography exams in their lifetime and therefore it is necessary to reduce the irradiation to an acceptable minimum. In 1631 patients underoing mammography screening, the following relations for the cranio-caudal projection of the left Braest were evaluated: the dependence of a mean mammary gland dose on the compressed Brest thickness and on mAs. The largest group in the monitored set was between 50 {--} 54 years of age and the age of the mammography screening clients examined for the first time was between 45 {--} 49 years. In my work I recommended a program for the calculation of glandular irradiation, which is available on the Internet for free and I did not detect elevated ``diagnostic reference levels.{\crqq}
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5 HÁJKOVÁ, Marie
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22 HÁJKOVÁ, Martina
22 HÁJKOVÁ, Michaela
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