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Comparison of 99mTc Injected Activity with Prescribed Activity in Four Types of Nuclear Medicine Exams

Author(s):

Muhammad Isa Khan, Umme Farwa, Tahir Iqbal, Saadat Ali, Aalia Nazir and Mohsin Ijaz*   Pages 1 - 6 ( 6 )

Abstract:


Background: 99mTc is a radioactive isotope that obtained by eluting a 99Mo/99mTc generator." (PINSTECH, Islamabad) and used for radionuclide scanning.

Objectives: Objective of this work is to study the uncertainties in 99mTc activity that exist due to time delay between injection preparation time and administration time to patients during process of gamma camera scanning.

Methods: Lead canisters used for storing elution vials and dose calibrator used for measuring 99mTcactivity in mCi. Injection prepared 99mTc activity and inserted activity to patients compared with prescribed values of activity that is recommended in society of nuclear medicine procedure guidelines [1].

Results: This study comprised that uncertainty in activity exist in one thyroid patient, 38 bone patients, 5 renal patients and 45 cardiac patients.

Conclusion: This uncertainty in activity exists due to time delay between the injection preparation time and administration time to patients as well as due to residual radionuclide that is not injected into patients and remains in syringe.

Keywords:

99Mo/99mTcgenerator, Radiopharmaceutical, 99mTc, dose calibrator

Affiliation:

Department of Physics, Faculty of Science, University of Gujrat, Hafiz Hayat Campus, Gujrat, 50700, Department of Physics, Faculty of Science, University of Gujrat, Hafiz Hayat Campus, Gujrat, 50700, Department of Physics, Faculty of Science, University of Gujrat, Hafiz Hayat Campus, Gujrat, 50700, Gujranwala Institute of Nuclear Medicine & Radiotherapy, Gurjranwala, Department of Physics, The islamia university of Bahawalpur, Department of Physics, Faculty of Science, University of Gujrat, Hafiz Hayat Campus, Gujrat, 50700



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