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Abstract
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Article Information:
An Investigation of Mean Glandular Dose from Routine Mammography in Urmia, Northwestern Iran and the Factors Affecting It
Leili rahmatnezhad, Zhaleh Behrouzkia, Ahad Zeinali, Mir Hamid Mohammady and Nasrollah Jabbari
Corresponding Author: Nasrollah Jabbari
Submitted: March 19, 2012
Accepted: April 16, 2012
Published: September 15, 2012 |
Abstract:
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The objective of this study was to determine the Mean Glandular Dose (MGD) resulting from
Craniocaudal (CC) and Mediolateral oblique (MLO) views in one breast and the total dose per woman in
Urmia, northwestern Iran and to identify the factors affecting it. This study was conducted during 9 months to
estimate the MGD for women undergoing mammography and to report the distribution of dose. The clinical
data were collected from 460 mammograms taken from 230 women who were referred to radiology center of
Imam Reza hospital in Urmia. The piranha system version 3.8A was used for determining the MGD in this
work. The MGD values are based on measurements of ESAK (entrance surface air krema) and HVL.
Significant differences were found between MGD from CC and MLO views. The mean±SD MGD per film
was 1.18±0.38 mGy for craniocaudal and 1.39±0.51 mGy for mediolateral oblique views, (p<0.001). The
mean±SD MGD per woman was 2.57±0.44 mGy. The mean± SD MGD per film in present study were lower
than most of similar reports. The dose values obtained fall within the internationally acceptable dose range of
1-3mGy. This suggests mammography x-ray generators in this part of the country are capable of achieving
acceptable dose levels for patient safety. Therefore, with considering the all other factors, the establishment of
screening mammography program is achievable.
Key words: Compressed Breast Thickness (CBT), Entrance Surface Air Krema (ESAK), Mammography, Mean Glandular Dose (MGD), , ,
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Cite this Reference:
Leili rahmatnezhad, Zhaleh Behrouzkia, Ahad Zeinali, Mir Hamid Mohammady and Nasrollah Jabbari, . An Investigation of Mean Glandular Dose from Routine Mammography in Urmia, Northwestern Iran and the Factors Affecting It. Research Journal of Applied Sciences, Engineering and Technology, (18): 3348-3353.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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