computed tomography

Sharing is caring!

What is computed tomography (CT), and how does it work?

CT is a structural imaging technique that uses x-rays to create tomographic (cross-sectional) images. A patient is placed onto a scanner table and passes through the CT gantry, which contains an x-ray tube and an oppositely located array of x-ray detectors that rotate together about the patient ( Figure 2-3 ). A large number of x-ray projections are obtained from multiple angles at each slice position in the patient, each of which contains data regarding the differential attenuation of x-rays by different tissue types in the patient. These projections are then used by a computer to reconstruct CT image

Sharing is caring!


Sign up to receive the trending updates and tons of Health Tips

Join SeekhealthZ and never miss the latest health information

Scroll to Top