X-rays. X-ray tube.
Interaction between X-ray and patient. Attenuation coefficient.
Image production with X-rays. Contrast of the subject.
History of the CT. From the first CT to the fourth CT generation.
Monolayer and multilayer spiral CT.
Typical structure of a CT scan: the gantry, the generator, the collimators,
the detectors, the data acquisition system, command console and data
storage.
CT parameters. Exposure, geometric and reconstruction parameters.
Hounsfield numbers.
Reconstruction of images. Reconstruction methods: Radon transform,
filtered back projection, iterative method.
Planning of a CT acquisition: variation of the technical parameters in the
different protocols and acquisition conditions.
Typical CT artifacts.
CT with contrast. Examples of CT acquisitions with and without contrast.
Hybrid CTs.
Biological effects of CT.