نوع مقاله : مقاله های پژوهشی
نویسندگان
1 دانشجوی کارشناسی ارشد، گروه فیزیک و مهندسی پزشکی، دانشکدهی پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران
2 استادیار، گروه فیزیک و مهندسی پزشکی، دانشکدهی پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران
3 دانشجوی کارشناسی ارشد آمار زیستی، گروه آمار زیستی، دانشکدهی بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Background: The estimation of patient absorbed dose is the first step of radiation protection that depends on quantification of organ activity in nuclear medicine. The aim of this study was estimating the organ activity for the purpose of calculating the dose and predicting radiation risks.Methods: The anterior and posterior images of volunteers were taken at 15, 60 and 120 minutes after the injection, either at rest or during exercise. Then, the organ activity was calculated using the conjugate view method, and also uptake of 99mTC-MIBI was determined.Findings: The activity in the heart, liver and kidneys ranged 0.10-0.45, 0.26-4.19 and 0.68-2.03 mCi, respectively, in rest and 0.14-0.65, 0.47-2.70 and 0.46-2.63 mCi after the exercise. The uptake was 0.6-3.5, 1.4-23.1 and 2.6-14.1 percent of injected dose (ID) in heart, liver and kidney, respectively.Conclusion: The results of this study were in good agreement with similar studies. So, the conjugated view method with conventional method for background correction is an accurate approach for quantification of organ activity in myocardial perfusion scan.
کلیدواژهها [English]