CT Photon Counting: Basic Physics This document provides an overview of the fundamental physics underlying photon counting in computed tomography (CT). Photon counting technology represents a significant advancement in imaging techniques, offering improved sensitivity and resolution compared to traditional energy-integrating…
Understanding X-Ray Grid Artifacts
Contrast Resolution in CT
Targeted Radionuclide Therapy.
Slice Thickness and Partial Volume in CT
Mammography is a specialized imaging technique used for the early detection of breast cancer. The effectiveness of mammography largely depends on the choice of target anode and filter combinations, which influence the quality of the X-ray beam and the resulting image contrast. This…
CT Image Quality CT image quality is a critical aspect of medical imaging that directly impacts diagnostic accuracy and patient outcomes. This document explores the various factors that influence the quality of computed tomography (CT) images, including technical parameters, patient…
Contents 1. – Introduction to radionuclide imaging 2. Atomic structure 3. Radioactivity Lecture no 1 1-introduction to nuclear imaging: · In nuclear imaging, we are using radionuclides to be injected into the patient for imaging or therapy purposes. · The radionuclide is targeted toward…
Contents 1-X-Ray beam attenuation 2- X-Ray tube 3-Tube rating and cooling 4- Line focus principle 5-Anode heel effect 6-off focus radiation 7-Questions 1-X-Ray beam attenuation: · X-Ray is produced from an X-ray tube with different energies (Poly-Energetic). · The…
Screen Film Radiography 1-Screen Film Radiography The imaging principle: · Patient’s body is composed of different materials with different attenuation properties. · If an X-ray incident on the patient, the high-density material (Bone) will absorb a high amount of radiation, while the…