Exam-style question
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How does contrast in an X-ray image primarily depend on the tissues being imaged?.
- A.Tissue density differences
- B.Thickness of the tissues
- C.Type of X-ray machine used
- D.Duration of exposure
Model answer
What a good answer should say
- Tissue density differences
Explanation
Why this works
Contrast in an X-ray image is primarily influenced by the differences in tissue density. Denser tissues absorb more X-rays, resulting in darker areas on the image, while less dense tissues allow more X-rays to pass through, appearing lighter.
This differential absorption is crucial for distinguishing between various tissues.
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