Evaluation of radiation doses resulting from the use of x-rays in mammography

Abstract

Breast cancer threatens a large proportion of the world’s women to die annually and does not know the exact causes of this disease. Among these causes is an increase in the surface radiation dose absorbed by the breast during the examination. The research included estimating the ESDpp surface admission dose in the presence of the patient as well as measuring the ESDpa surface entry dose by the absence of the patient and the same previous conditions of voltage and exposure (mAs), background scattering factor for the rays, and calculating the glandular dose rate (AGD) after finding the value of the conversion factor appropriate to the test conditions Given in the standard tables (Ec. 1996a), quality assurance measurements. The paper was done using (Dosimax) and the ionization room (Unfors). The study was conducted in Baghdad Teaching Hospital and Alzafaranya Hospital using two advanced Giotto devices, and it included a number of patients (20 patients) by (10 patients) in each hospital and used compressed breast thickness (CBT) of 60 cm, 70 cm respectively in each of the two sites. The study showed that the maximum values of the ESDpp and ESDpa surface admission dose measured using the (Dosimax) device and the ionization chamber, respectively, do not exceed its value (21mGy). The mean glandular dose rate AGD, the maximum values are (4.1mGy).