Keywords:
Radiographers, Digital radiography, Radiation safety
Authors:
N. Mekis; Ljubljana/SI
DOI:
10.1594/ecr2018/C-1840
Methods and materials
For 110 patients that were referred to the pelvic radiography height and weight was measured and imaging field size as well as DAP was obtained.
Patients were divided into three group according to the BMI (normal,
overweight and obese patients).
Patients in the normal weight group had BMI < 24.99,
the overweight group had BMI between 25.0 and 29.99,
and the overweight patients had a BMI > 30.0.
The imaging was performed with a general radiography unit with exposure parameters source to image distance (SID) 150 cm,
81 kVp and automatic exposure control (both lateral).
The DAP values were obtained from the x-ray unit.
Prior to the research a quality assurance tests were performed to ensure that the optimal results.
The DAP,
effective dose (E),
and dose to selected internal organs were compered between all three groups.
Effective dose and dose to selected organs were calculated using PCXMC2.0 program.
Prior to the study the National medical ethic committee approval was obtained.
Shapiro Wilk test was used to determine the normal distribution of the variable and Kruskal-Wallis test was used to determine the dose differences between the three groups of BMIs.