NM QC

Question 1

Radio calibrator QC level A

Answer 1

Daily
Physical inspection
High voltage / bias check
Clock accuracy
Background 
Zero adjustment
Constancy

Question 2

Radio calibrator level B QC

Answer 2

Annual
Stability - repeat measurement
Accuracy - readings of a source with a known activity / traceable calc
6 monthly
Linearity - accross a clinically relevant range clinical

Question 3

Gamma probe QC level A

Answer 3

Each use
Power source check
Physical inspection
Background check
Sensitivity / constancy check with a test source

Question 4

Gamma probe Level B

Answer 4

6 monthly
Stability
Energy spectrum
(Comissioning - Uniformity)

Question 5

Sample counter QC daily / monthly / annual

Answer 5

Before use
Background check
Sensitivity check with a test source (Cs137 - long lived) 
6 monthly
Stability - short term count precision 
Annual
Linearity - vials of different activity same volume accross clinical range
Dead time - high activity source

Question 6

Gamma camera daily level A

Answer 6

Physical inspection
Collimator touch pad checks
Energy window check Tc99m / other E used
BG count rate check
Intrinsic/ extrinsic flood - 4Mcts (tc-99m/Co57)

Question 7

Gamma camera level B

Answer 7

Monthly 
COR
Intrinsic (40Mcts)
Extrinsic flood (40Mcts)
JAZCZAK - Tomo uni/contrast / Res / atten Corr 
Uni rods spheres 
3m
Intrinsic other nuclides.
6m
Spatial res / linearity - bar phantom.
Multi window spatial resolution
Pixel size - abs pixel size 
Annual
Whole body uniformity - spatial resolution in air 
As req
Uniformity calibration - update correction map

Question 8

PET QC level A

Answer 8

Physical
Point source check
Manufacturers CT checks

Question 9

PET QC level B

Answer 9

Post maintenance
Uniformity 68Ge cylinder or F18 phantom
Variable.
Normalisation - set response to act within FoV
Calibration - find calibration factor from image voxel intensity to find the true activity concerntration
Annual
Spatial resolution - point source sinogram
Count rate performance - measure count rate of decaying activity
Sensitivity - volume resp of sys to a known activity
I’m quality - NEMA NU 2 phantom hot/cold spheres

CT monthly
CT number check
Pet/CT alignment check

Annual
As per rad phys advise