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Journal of Nuclear Medicine Technology, Vol 25, Issue 1 41-43, Copyright © 1997 by Society of Nuclear Medicine

ARTICLES

Nonuniformity intrinsic flood artifact caused by point-source syringe needle

MT Hackett, SL Magoun and RB Thompson
Nuclear Medicine Service, Department of Veterans Affairs Medical Centers, Lexington, Kentucky 40511-1093, USA.

The purpose of this study was to investigate the cause of a nonuniformity artifact seen on an intrinsic flood. METHODS: Intrinsic floods were acquired on three different cameras using a point source in a 1-cc syringe, with and without a needle attached. Floods were obtained with the syringe placed perpendicular and parallel to the camera face. RESULTS: A nonuniformity artifact was evident if a syringe with a needle was placed perpendicular to the crystal face. CONCLUSION: If a syringe is used as a point source during the acquisition of an intrinsic quality control flood, the needle should not be placed perpendicular to the camera face.




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THE JOURNAL OF NUCLEAR MEDICINE JOURNAL OF NUCLEAR MEDICINE TECHNOLOGY
Copyright © 1997 by the Society of Nuclear Medicine Technologist Section.