: The X-ray source and electronic detector array rotate around the patient to take measurements from many angles. 2. Image Formation & Reconstruction
: A scale used to quantify tissue density, where water is 0 HU and air is -1,000 HU. 3. Technological Evolutions Download TomodensitomГ©trie principes pdf
: The scanner measures how much an X-ray beam is attenuated (weakened) as it passes through different tissues. Beer-Lambert Law : This physical law ( : The X-ray source and electronic detector array
Tomodensitométrie is a revolutionary radiological method that produces cross-sectional (axial) images of the human body. Unlike traditional 2D radiography, it uses: Unlike traditional 2D radiography, it uses: The raw
The raw data gathered by detectors is converted into visual slices through mathematical processes:
: A common algorithm used to solve for attenuation coefficients in each anatomical slice.
: The geometric principle used to reconstruct a 2D object from its measured projections.