SPECIAL - Mammo and Nucs QC Flashcards
Mammo QC - stereo accuracy/alignment
daily (before use)
Mammo QC - mobile unit
daily
Mammo QC - processor
daily
Mammo QC - darkroom cleanliness
daily
Mammo QC - viewbox/screen cleanliness
weekly
Mammo QC - phantom
weekly
Mammo QC - uniformity
weekly; flat field test with a large piece of acrylic
Mammo QC - repeat analysis
quarterly
Mammo QC - compression
semi-annually
Mammo QC - darkroom fog
semi-annually
Mammo QC - screen-film contrast
semi-annually
Mammo QC - digital machines
follow manufacturer’s recommendations
Gamma camera QC - extrinsic uniformity
daily; with collimator; Co-57 flood source
Gamma camera QC - photopeaking
daily; test photopeak window on a common source (e.g. Tc-99m)
Gamma camera QC - intrinsic uniformity
weekly; without collimator; Tc-99m vial
Gamma camera QC - spatial resolution
weekly; bar phantom
Gamma camera QC - linearity
weekly; bar phantom
Gamma camera QC - center of rotation
weekly or monthly (conflicting sources); using point or line source
Gamma camera QC - overall system performance
quarterly; Jascszak phantom; Tc-99m source
Gamma camera QC - table and gantry alignment
quarterly
Dose calibrator QC - constancy
daily; Cs-137 (long half-life); measuring same activity across time
Dose calibrator QC - linearity
quarterly; Tc-99m; activity should half q6 hours
Dose calibrator QC - accuracy
annually; checked against standardized doses of Co-57, Cs-137, and Co-60 (varying energy levels)
Dose calibrator QC - geometry
installation or relocation; different shaped Tc-99m samples
Well counter QC - background
daily
Well counter QC - constancy
daily
Survey meter QC - battery
before each use
Survey meter QC - background
before each use
Survey meter QC - constancy
before each use
Survey meter QC - calibration
annually
Sealed sources QC
wipe test for leaks every 6 months
PET QC - attenuation correction
daily; “blank scan”
PET QC - uniformity
daily; “blank scan”
