QAQC

Quality Assessment

organization-wide framework that defines

standards, policies, and oversight needed to

guarantee that imaging services consistently meet

quality and safety requirements.

Quality Control

set of specific, routine technical

procedures - phantom tests, calibration checks,

exposure measurements used to verify that

imaging equipment is functioning within acceptable

limits

Diagnostic Confidence

Consistent image quality means radiologists can

trust what they see-and catch what matters.

Patient Protection

Well-controlled equipment reduces unnecessary

radiation exposure and repeat exams

Institutional Trust

documented program satisfies accréditation

bodies, insurers, and the public

Diagnostic Image Quality

Ensure every image is clear, artifact-free, and

diagnostically reliable.

Patient Safety

Enhance safety and reduce radiation exposure

through dose optimization.

Regulatory Compliance

Maintain adherence to accreditation and legal

standards at all times.

Set Standards

Define measurable benchmarks for image qualihe

safety and workflow.

Assign Responsibility

Designate a QA coordinator and clarify staff roles

department-wide

Document Procedures

Write clear protocols so QC tests are performed

consistently.

Review & Revise

Update the program as equipment, staff, and

regulations change.

Performance Monitoring

Track QC results over time for drift or trends

Compare technologist output against

benchmarks

Review incide

Audits

Scheduled internal reviews of records and

protocols

Daily

Warm-up, visual inspection, baseline exposure

check

Weekly

Sensitometrydarkroom/processor checks, phantom scans.

Monthly

Beam alignment, collimation accuracy, dose

calibratio

Annual

Full physicist survey, comprehensive equipment

evaluation

Spatial Resolution

Ability to distinguish fine detail and small structures

Contrast Resolution

Ability to differentiate subtle density differences

Artifact Detection

Identifying image flaws from equipment or

process

Radiation Output

Verifying dose delivered matches expected

exposure

Uniformity

Consistent

Reject/Repeat Rate

Tracking failed images as an equipment health

signal