GK Question

science medium mcq

Which imaging technique uses X-rays to create cross-sectional images of the body?

  1. MRI
  2. Ultrasound
  3. CT scan
  4. PET scan

Answer: CT scan

Computed Tomography (CT) rotates X-ray source/detectors around patient; computer reconstructs slices. Superior for bone, trauma, lung imaging. Higher radiation dose than X-ray radiography. [[NCERT Physics Class 12]]

Topic Physics - Medical Imaging
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