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Chapter 18 Quality Control. Quality Assurance is a JCAHO required 10 step PEOPLE process Quality Control Is an imaging instrumentation and equipment process. QC – 3 step process. Acceptance testing Routine performance monitoring Maintenance. Radiography QC. Filtration - Annually

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Chapter 18 quality control

Chapter 18 Quality Control

Quality Assurance is a JCAHO required 10 step PEOPLE process

Quality Control

Is an imaging instrumentation and equipment process


Qc 3 step process
QC – 3 step process

  • Acceptance testing

  • Routine performance monitoring

  • Maintenance


Radiography qc
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


Focal spot size check tools
Focal Spot Size Check Tools

  • Pin hole camera (somewhat hard to use)

  • Star pattern (down to .3 mm sizes)

  • Slit camera – preferred method


Other rad qc
Other RAD QC

  • Filtration

  • Collimation (PBL)

  • kVp/Timer

  • Exposure Linearity (same mAs with varied mA and times)

  • Intensifying screens

  • Protective apparel

  • Film illuminators


Fluoro qc
Fluoro QC

  • Exposure rate

  • Spot-fil Exposures

  • Automatic Exposure System (ABS – AEC)


Tomo qc
Tomo QC

  • Tube travel/ARC

  • Fulcrum level

  • Pt. Exposure


Processor qc
Processor QC

  • See table 18-8 (p. 313) for QC for RAD Processor items/intervals

  • Processor Maintenance

    • Scheduled maintenance

    • Preventative maintenance

    • Nonscheduled maintenance


Processor monitoring
Processor Monitoring

  • Temperatures

  • Replenishment

  • Sensitometry/Densitometry


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