RT Journal Article
SR Electronic
T1 Nonuniformity Intrinsic Flood Artifact Caused by Point-Source Syringe Needle
JF Journal of Nuclear Medicine Technology
JO J. Nucl. Med. Technol.
FD Society of Nuclear Medicine
SP 41
OP 43
VO 25
IS 1
A1 Hackett, Michael T.
A1 Magoun, Sylvia L.
A1 Thompson, Rosemary B.
YR 1997
UL http://tech.snmjournals.org/content/25/1/41.abstract
AB 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.