Tomodensitométrie principes, formation de l'image - Slideshare
This report summarizes the fundamental principles of (TDM), also known as CT scanning, as detailed in various academic and professional resources including course materials from Urofrance and the Collège des Enseignants de Radiologie de France (CERF) . 1. Fundamental Principles
) governs the intensity variation of the beam based on the material's linear attenuation coefficient ( Download TomodensitomГ©trie principes pdf
: The X-ray source and electronic detector array rotate around the patient to take measurements from many angles. 2. Image Formation & Reconstruction
: 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 geometric principle used to reconstruct a
The technology has evolved through several "generations" to improve speed and quality:
: A common algorithm used to solve for attenuation coefficients in each anatomical slice. also known as CT scanning
: The geometric principle used to reconstruct a 2D object from its measured projections.