| dc.description.abstract | Mammographic quality control involves
estimation of average dose to the glandular tissues
of the breast. Present study was conducted at the
Nawaloka Hospital, Colombo, Sri Lanka with
the 109 women who attended mammographic
screening. Main objective was to investigate the
relationship between AGD (Average Glandular
Dose) and Body Mass Index (BMI) in Digital
Breast Tomosynthesis (DBT). Data on participants
were collected by incorporating a structured
questionnaire. Height (cm) and weight (kg) of
each participant was used to estimate the BMI.
Average dose to the glandular tissues (mGy) of
the breasts was recorded from the DBT computer
system. Majority of participants belonged to
overweight and obese BMI categories while
none belonged to lean category. Premenopausal
women allotted to normal, overweight and obese
BMI categories had their mean BMI of 21.27 kg/
m2, 25.63 kg/m2 and 30.84 kg/m2 respectively. The
counterpart postmenopausal women had mean
BMI of 21.85 kg/m2, 25.17kg/m2 and 31.12kg/
m2 respectively. Relationship between AGD
and BMI during MLO (Mediolateral oblique)
views in both the pre and post-menopausal
categories was significant (r=0.64, 0.53, 0.40, 0.30
and P=0.00 to 0.03). The study did not reveal
a significant correlation of BMI to AGD at right
craniocaudal views (RCC) in both categories
(P=0.19 and 0.45). However, the correlation was
significant during left craniocaudalview (LCC)
in premenopausal women (r=0.33 and P=0.01).
In contrast, relationship could not be established
during LCC view in post-menopausal category
(P=0.15). It is concluded that relationship of
AGD and BMI holds a significant and positive
relationship (r=0.64 to 0.30 and P=0.00 to 0.03)
during MLO views in both the pre and postmenopausal
women categories and LCC view in
pre-menopausal category. But this matter has to
be verified with higher population. | en_US |
