Objective To assess collimation practices and quantify the irradiated area outside the area of diagnostic interest(ADI).Methods 1503 radiographs(627 females and 876 males)of seven body regions for patients with age gr...Objective To assess collimation practices and quantify the irradiated area outside the area of diagnostic interest(ADI).Methods 1503 radiographs(627 females and 876 males)of seven body regions for patients with age groups(≤1 year,1–12 years,13–17 years,18–65 years,≥65 years)from three major(A.governmental,B.university affiliated,and C.private)hospitals in northern Jordan were included.For each radiograph,the length and width of the irradiated area and of the ADI were measured.Then the ratio factors(RF),the irradiated area outside ADI,and the percentage of irradiated area outside ADI were calculated.Kruskal-Wallis and Mann-Whitney-U tests were used to examine the differences in ADI,the irradiated area outside ADI and RF according to age and gender.A regression analysis identified variables associated with RF and irradiated area outside ADI and its percentage.Results The RF ranged from 1.7 to 3.5.Patients aged≤1 year exhibited significantly higher irradiated area outside ADI(722.1cm^(2)),RF(3.7),and the percentage of irradiated area outside the ADI(72.7%)compared to other age groups(P<0.001).The actual collimation,area of ADI,and the irradiated area outside the ADI were significantly higher in males than those in females(P<0.001).Hospital A had a significantly higher irradiated area outside the ADI(871.4cm^(2)),RF(3.1),and percentage of irradiated area outside the ADI(67.2%)than other hospitals(P<0.001),which can be due to high patient volume in governmental hospitals and less time to pay attention to patient protection.Conclusions This study found inadequate X-ray beam collimation practice among radiographers in all participating hospitals,the radiation fields were at least two times larger than the ADI.This raises the importance of educating radiographers on collimation techniques and ensuring that all hospitals adhere to standardized collimation practices.展开更多
基金funding by Jordan University of Science and Technology Deanship of Research Grant numbers(No.20230465).
文摘Objective To assess collimation practices and quantify the irradiated area outside the area of diagnostic interest(ADI).Methods 1503 radiographs(627 females and 876 males)of seven body regions for patients with age groups(≤1 year,1–12 years,13–17 years,18–65 years,≥65 years)from three major(A.governmental,B.university affiliated,and C.private)hospitals in northern Jordan were included.For each radiograph,the length and width of the irradiated area and of the ADI were measured.Then the ratio factors(RF),the irradiated area outside ADI,and the percentage of irradiated area outside ADI were calculated.Kruskal-Wallis and Mann-Whitney-U tests were used to examine the differences in ADI,the irradiated area outside ADI and RF according to age and gender.A regression analysis identified variables associated with RF and irradiated area outside ADI and its percentage.Results The RF ranged from 1.7 to 3.5.Patients aged≤1 year exhibited significantly higher irradiated area outside ADI(722.1cm^(2)),RF(3.7),and the percentage of irradiated area outside the ADI(72.7%)compared to other age groups(P<0.001).The actual collimation,area of ADI,and the irradiated area outside the ADI were significantly higher in males than those in females(P<0.001).Hospital A had a significantly higher irradiated area outside the ADI(871.4cm^(2)),RF(3.1),and percentage of irradiated area outside the ADI(67.2%)than other hospitals(P<0.001),which can be due to high patient volume in governmental hospitals and less time to pay attention to patient protection.Conclusions This study found inadequate X-ray beam collimation practice among radiographers in all participating hospitals,the radiation fields were at least two times larger than the ADI.This raises the importance of educating radiographers on collimation techniques and ensuring that all hospitals adhere to standardized collimation practices.
