A computed tomography (CT) or computed axial tomography (CAT) scan is a noninvasive imaging procedure that uses X-rays to create detailed pictures of the inside of the body. Both terms refer to a painless diagnostic imaging procedure that uses a series of X-rays and a computer to create detailed, cross-sectional images (or “slices”) of the inside of the human body.
Principles
- A patient lies on a motorised table that slides into a doughnut-shaped CT scanner.
- An X-ray source rotates around the patient, taking a beam of X-rays through the body.
- Detectors opposite the X-ray source capture the X-rays that pass through the body.
- A computer interprets the X-ray data and creates images.
Applications
- Diagnosing disease, such as tumours, blood clots, and infections
- Planning treatment
- Evaluating the effectiveness of treatment
- Checking for injuries, such as bone fractures and internal bleeding
- Guiding biopsies and tissue aspiration
A biograph instrument is a PET/CT scanner that is used in oncology, cardiology, and neurology. It is used for diagnostics, radiation therapy planning, and research imaging.
You must be logged in to post a comment.