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Computed Tomography Scan

  • IASbaba
  • May 4, 2021
  • 0
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Computed Tomography Scan

Part of: GS Prelims and GS – III – Sci & tech 

In news

  • CT scans have been in news since several Covid positive patients with mild to moderate Covid symptoms, and some with negative RT-PCR reports having Covid symptoms are coming for the test 

Important value additions 

CT scan 

  • It is also known as computed tomography scan.
  • It is a medical imaging technique used in radiology to get detailed images of the body noninvasively for diagnostic purposes.
  • CT scanners use a rotating x-ray tube and a row of detectors placed in the gantry to measure X-ray attenuations by different tissues inside the body.
  • The multiple X-ray measurements taken from different angles are then processed on a computer using reconstruction algorithms to produce tomographic (cross-sectional) images (virtual “slices”) of a body.
  • The use of ionizing radiations sometimes restricts its use owing to its adverse effects.

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