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Human Health And Disease

Question
CBSEENBI12047394
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X-ray is needed for

  • Ultrasonography

  • CT scanning

  • MRI

  • NMR

Solution

B.

CT scanning

Computed Tomography (CT) is a non- invasive medical examination or procedure that uses specialised X-ray equipment to produce cross- sectional images of the body. X- rays is used in diagnosis because all substances and tissues differ in their ability to absorb X-rays. Some substances are more permeable to X-rays, while some others impermeable. Thus, different tissues seem different when the X-ray film is developed. 

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