Computed tomography (password)

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Computed tomography
CT diagram

CT ( computed tomography ) is a diagnostic method where we measure the intensity of a narrow beam of X-ray radiation that has passed through the patient's body in different directions.

The computer calculates the image from the measured values .

The radiation source is gradually rotated 180° around the patient's body at small angles, so that each incision is irradiated from many directions. The computer then calculates the absorption values ​​at a certain point of the transmittance plane and displays the values ​​in a certain color or brightness on the display.

The radiation detectors in CT equipment are very sensitive and distinguish a large number of radiation intensities , i.e. the image is better.

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  • Radiodiagnostics portal
  • Šprindrich Jan: Computed tomography – CT. Multimedia support for the teaching of clinical and health disciplines :: Portal of the 3rd Faculty of Medicine of the UK [online] 6.3.2011, last update 23.11.2011 [cit. 2011-12-22] Available from WWW: < >. ISSN ISSN 1804-3143