Gamma Camera - Artifactsnucleus.iaea.org › HHW › Technologists... · Gamma Camera - Artifacts...
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Gamma Camera - Artifacts David Gilmore, MS, CNMT, NCT, RT(R)(N) Matthew R. Palmer, PhD Images courtesy of Dan Devries and Fredric Fahey (TCH) Beth Israel Deaconess Medical Center Department of Radiology Boston, MA USA
Transcript of Gamma Camera - Artifactsnucleus.iaea.org › HHW › Technologists... · Gamma Camera - Artifacts...
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Gamma Camera - Artifacts
David Gilmore, MS, CNMT, NCT, RT(R)(N)
Matthew R. Palmer, PhD Images courtesy of Dan Devries and Fredric Fahey (TCH)
Beth Israel Deaconess Medical Center
Department of Radiology
Boston, MA USA
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Linearity
With Linearity Correction Linearity Correction Off
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Uniformity Corrections & Off-Peak Images
Tc-99m (140 keV) – Intrinsic Floods, no Uniformity Correction
Window (-10%,+10%) Windows (0, +10%) Windows (0, -10%)
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Collimator Defect
Early Late
Extrinsic Flood, foil collimator
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Tube Defect
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Cracked Crystal
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Patient Motion
67Ga
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Overlying Objects
Lung Pacemaker
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Off-Peak Images -1
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Off Peak Images -2
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Distance Effects