CTskanner

CTskanner is a computed tomography device used in medical imaging to generate cross sectional images of the human body. It combines X-ray tubes and detectors arranged around a rotating gantry, collecting attenuation data as the gantry spins. Modern CTskanners often use multi-slice detectors and helical scanning to acquire volumetric data rapidly, which can be reconstructed into axial, coronal, and sagittal slices as well as three‑dimensional renderings.

Operation relies on the emission of X-rays, their passage through the body, and detection of transmitted photons. Reconstruction algorithms, such as filtered back projection or iterative methods, convert the data into cross‑sectional images. Dual‑energy or spectral CT variants use two or more energy spectra to differentiate materials.

Applications span trauma assessment, cancer diagnosis and staging, cardiovascular evaluation, lung imaging, and musculoskeletal studies. They are also used for planning radiotherapy, guiding percutaneous procedures, and enabling rapid triage in emergency settings.

Safety and limitations: CT involves ionizing radiation; dose optimization and justification are essential. Contrast-enhanced CT uses iodinated agents, with attention to allergy risk and kidney function. Limitations include motion and metal artifacts, radiation exposure, and the need for specialized equipment and trained personnel.

History: CT originated in the 1970s with work by Godfrey Hounsfield and Allan Cormack. Since then, CT technology has progressed to multidetector systems, CT angiography, and dual‑energy imaging, expanding clinical capabilities, efficiency, and image quality.