Exam-style question
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How does the use of contrast media enhance X-ray imaging?.
- A.It decreases the overall exposure time.
- B.It increases the absorption of X-rays in specific areas.
- C.It makes all tissues appear equally visible.
- D.It eliminates the need for X-ray machines.
Model answer
What a good answer should say
- It increases the absorption of X-rays in specific areas.
Explanation
Why this works
Contrast media are substances that have a different absorption characteristic than the surrounding tissues. By increasing the absorption of X-rays in specific areas, they enhance the contrast in the images, making it easier to differentiate between various structures.
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