Estimating the Activity of Heart, Liver and Kidneys in Myocardial Perfusion Scan with 99mTC-MIBI Using Conjugate View Method

Document Type : Original Article (s)

Authors

1 MSc Student, Department of Medical Physics and Medical Engineering, School of Medicine AND Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran

2 Assistant Professor, Department of Medical Physics and Medical Engineering, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

3 MSc Student, Department of Biostatistics, School of Health AND Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran

Abstract

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.

Keywords

References

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Journal of Isfahan Medical School
Volume 33, Issue 340 - Serial Number 340
May and June 2015
Pages 983-991

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History

  • Receive Date: 09 April 2015
  • Revise Date: 01 November 2024
  • Accept Date: 06 April 2022

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