Modified Preparation and Rapid Quality Control Test for Technetium-99m-Tetrofosmin

Journal of Nuclear Medicine Technology

Azu Owunwanne¹  Mahmoud Tuli¹  Mohan Patel¹  Shihab Al-Mohannadi¹  Azza Al-Bunny¹  Khalda Al-Za’abi¹  Shaukat Jahan¹  Asha Jacob¹  Mahmoud Sa’ad¹ 

[1] Department of Nuclear Medicine, Kuwait Cancer Control Center, Kuwait City; Department of Nuclear Medicine, Mubarak Al-Kabeer Hospital, Kuwait City; and Department of Nuclear Medicine, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait Department of Nuclear Medicine, Kuwait Cancer Control Center, Kuwait City; Department of Nuclear Medicine, Mubarak Al-Kabeer Hospital, Kuwait City; and Department of Nuclear Medicine, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait Department of Nuclear Medicine, Kuwait Cancer Control Center, Kuwait City; Department of Nuclear Medicine, Mubarak Al-Kabeer Hospital, Kuwait City; and Department of Nuclear Medicine, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait

关键词: technetium-99m-tetrofosmin;    quality control;    preparation;    image quality;   

DOI  :  

学科分类：医学（综合）

来源: Society of Nuclear Medicine

【 摘 要 】

Objective: The objectives of this study were to: modify the preparation of 99mTc-tetrofosmin by using twice the amount of 99mTcO4− recommended by the manufacturer; evaluate the use of miniaturized rapid paper chromatography (MRPC) for quality control (QC) testing; and determine the in vitro stability of the modified preparation using MRPC.Methods: Two preparations of 99mTc-tetrofosmin were made: one with 4.4–8.8 GBq (120–240 mCi) and the other with 13.9–17.6 GBq (380–480 mCi) 99mTcO4−, referred to as regular and modified preparations, respectively. Routine QC tests were performed using MRPC and instant thin-layer chromatography/silica-gel (ITLC/SG) systems. The preparations were injected into 58 patients. Planar and SPECT images of stress and rest studies were obtained. The technical quality of the SPECT images was graded visually by four observers. Heart-to-lung and heart-to-background ratios were calculated from the planar images.Results: The QC testing procedure took 4.18 ± 0.15 min with MRPC and 54 ± 5.3 min with ITLC/SG systems. The percent labeling efficiency, as determined by both techniques, ranged from 95.6 ± 1.6 to 97.2% ± 0.8%. Both preparations were stable up to 6 hr after reconstitution. There was no difference between the cardiac-to-lung and cardiac-to-background ratios of the two preparations.Conclusion: The results indicate that MRPC is a faster and effective chromatographic technique for routine QC testing of 99mTc-tetrofosmin. Doubling the amount of 99mTcO4− used in preparing 99mTc-tetrofosmin did not affect its in vitro stability, its efficacious use in patients or the technical quality of the images.

【 授权许可】

Unknown