1. Chapter 18 Quality Control
Quality Assurance is a JCAHO required 10 step PEOPLE process
Quality Control
Is an imaging instrumentation and equipment process

2. QC – 3 step process Acceptance testing Routine performance monitoring
Maintenance

3. Radiography QC Filtration - Annually
Collimation – Semiannually (+/- 2% SID)
F.S. size – Annually (+/- 50%) FREQUENTLY MISSED PARAMETER!
kVp calibration – Annually ( +/- 10%)
Exp. Timer accuracy – Annually (based on ms used – more leeway with longer exposures)
Linearity – Annually (+/- 10%) of same mAs with differing mA/times
Exp. Reproducibility – Same contr./Dens., etc when exposures are repeated later on

4. Focal Spot Size Check Tools
Pin hole camera (somewhat hard to use)
Star pattern (down to .3 mm sizes)
Slit camera – preferred method

5. Other RAD QC Filtration Collimation (PBL) kVp/Timer
Exposure Linearity (same mAs with varied mA and times)
Intensifying screens
Protective apparel
Film illuminators

6. Fluoro QC Exposure rate Spot-fil Exposures
Automatic Exposure System (ABS – AEC)

7. Tomo QC
Tube travel/ARC
Fulcrum level
Pt. Exposure

8. Processor QC
See table 18-8 (p. 313) for QC for RAD Processor items/intervals
Processor Maintenance
Scheduled maintenance
Preventative maintenance
Nonscheduled maintenance

9. Processor Monitoring Temperatures Replenishment
Sensitometry/Densitometry