
ACR
Annual
Performance Tests - Gamma
Cameras
Intrinsic and system (each collimator) uniformity
Intrinsic or system spatial resolution
Energy resolution
System sensitivity
(CPM/Bq)
Multiple window spatial registration
Count rate parameters
Overall SPECT performance
Formatter or video display
Annual
Performance Tests –
Non-Imaging Equipment
Dose Calibrators - battery voltage, zero
adjustment, background
adjustment, constancy test, linearity, accuracy with NIST traceable standard,
and geometry
Thyroid Uptake and Counting Systems -
high voltage/gain checks, background count rate, Energy resolution, 123I
capsule or long-lived standard calibration check, chi-square test.
Routine
Quality Control Tests – Gamma
Cameras
Intrinsic or System Uniformity (daily)
Intrinsic or System Spatial Resolution (weekly)
Center-of-Rotation for SPECT Systems (monthly)
Overall System Performance for SPECT
Systems with SPECT phantom (quarterly)
High-Count Floods For Uniformity Correction
for SPECT Systems (frequency as recommended by a medical physicist)
Routine
Quality Control Tests –
Non-Imaging
Dose Calibrators
Daily to verify that the calibrator is
Quarterly linearity test
Leakage - semiannually non-exempt radionuclide
sources must be leak tested
Thyroid Uptake and Counting Systems -
each day of use to verify energy calibration and sensitivity
PET Performance Tests
Daily – validate energy calibration,
blank scans, and normalization
Monthly
SUV validation
Image quality with
PET phantom
Yearly
Normalization &
uniformity
Spatial resolution
Count rate
performance
Sensitivity
Attenuation
correction accuracy
SUV Calibration
Data still being collected to determine required
tests in the future.
ACR Approved ECT Phantoms
Jaszczak SPECT Phantom from Data
Spectrum (www.spect.com)
Submission
of Gamma
Camera Phantom Images
Submit images of 2 isotopes for each
unit
99mTc,
and 201Tl or 67Ga
only 99mTc, if only licensed for 99mTc
Planar imaging only module
uniformity & 4-quadrant bar phantom
SPECT module
Planar image of “butt end of rods” of
Jaszczak phantom
Transaxial reconstructions of specified
SPECT study (single slice and composite)
Images submitted on film
SPECT Phantom Images