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CAT scan is essentially _________

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CAT scan is essentially _________

(a) a finer X-ray of bones

(b) a detailed x-ray

(c) x-ray of soft tissues

(d) x-ray of brain

The question was asked in semester exam.

Question is from Computerized Axial Tomography in chapter Diagnostic Investigation via Imaging Techniques of Clinical Science

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Correct option is (c) x-ray of soft tissues

Explanation: The X – rays pass through the body completely. The bones are able to provide resistance to them to a limit by absorbing them. This resistance causes the image to appear. However, for soft tissues, the single shot of X- Rays cannot give an image as they do not pose any obstruction to them. To image soft tissues, multiple X – Rays of high energy need to be passed. Since it can negate out the effect of the bone and image in slices, CT is good for imaging soft tissues.

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