The purpose of this research was to investigate the impact of body mass index (BMI) on dose area product (DAP), effective dose (E), dose to the organs and image quality (IQ) on 200 patients referred to pelvic radiography. Patients were classified into three groups according to BMI: normal (<24.99), overweight (25.0–29.99) and obese (>30). The results showed 52% and 135% higher DAP for overweight and obese patients compared to normal-weight patients (p < 0.001). A 46 and 123% rise of E for overweight and obese patients compared to normal-weight patients (p < 0.001) was discovered. Overweight patients received 37% higher dose and obese patients 107% higher dose to the organs compared to normal-weight patients. There were no statistically significant differences between IQ, except between normal weight and overweight patients. A strong correlation (r = 0.733) was found between BMI and DAP and between BMI and E (r = 0.776).

The pur pose of this re search was to de ter mine how dose area prod uct, ef fec tive dose, absorbed doses to spe cific or gans, and im age qual ity changed ac cord ing to dif fer ent au to matic ex po sure con trol po si tions in pelvis im ag ing. The re search was car ried out in two parts. The study was con ducted on an an thro po mor phic phan tom and 200 pa tients re ferred to pel vic im ag ing. We mea sured the dose area prod uct, field size, height, and mass. Then we cal cu lated the ef fec tive dose and ab sorbed dose for in di vid ual or gans ac cord ingly. Lat eral ion iz ing cells were first po si tioned in line with the iliac crests (head to wards po si tion) and sub se quently, with the fem o ral neck (head away po si tion). All the im ages were in de pend ently eval u ated by three ra di ol o gists us ing ViewDEX and ob jec tive im age anal y sis was per formed mea sur ing con trast-to-noise ra tio and sig nal-to-noise ra tio. We found no sig nif i cant dif fer ences in the Siemens Luminos unit in any of the in spected param e ters. How ever, there was a sig nif i cant dif fer ence in dose area prod uct (37.3 %), ef fec tive dose (35.7 %) and av er age ab sorbed dose to se lected in di vid ual or gans (36.7 %) when the head away po si tion of the pa tient was used and the im age qual ity in creased. Based on these results, we can pro pose that the op ti mal po si tion of the pa tient re gard ing the ion iz ing cells is the head away po si tion.