Physics A-Level
Justified comparison
What Justified comparison means in Physics A-Level, as defined for AQA.
Definition of Justified comparison
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Reference: AQA
Naming the technique, stating the clinical task, then weighing resolution against convenience and safety to justify a choice.
Topics that use Justified comparison
- Imaging comparisons (A-level only) (AQA A-Level)
Related terms
- Clinical suitability and practical constraints
- Convenience
- Image quality and contrast mechanisms
- Image resolution
- Physical principles of medical imaging
- Safety
- Patient dose and radiation risk
Using Justified comparison in the exam
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