Computed tomography (password)

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.

related articles

 * Protection against ionizing radiation
 * Low-dose
 * Computed tomography
 * Computed tomography

Source

 * KUBATOVA, Senta. Biophoto [online]. [feeling. 2011-01-31]. < https://uloz.to/!CM6zAi6z/biofot-doc >.