Transmission computed tomography (CT) refers to a medical imaging technique that utilizes X-ray radiation to generate cross-sectional images of the human body. It is a non-invasive diagnostic method that allows healthcare professionals to visualize the internal structures and organs in detail, aiding in the detection and diagnosis of diseases or abnormalities.
In transmission CT, a thin and focused X-ray beam is passed through the patient's body. As the X-rays encounter different tissues and structures, they are attenuated to varying degrees depending on the material's density. This attenuation pattern is recorded by an array of detectors, located on the opposite side of the patient, which capture the X-rays that pass through.
A computer then reconstructs this attenuation data to produce detailed cross-sectional images of the body's internal structures. These images, often called tomographic slices, can be displayed on a computer monitor or printed for further analysis by healthcare professionals.
Transmission CT scans are commonly used in various medical specialties such as radiology, oncology, cardiology, and neurology. They can help visualize and evaluate abnormalities in organs, bones, blood vessels, and soft tissues. Some specific applications of transmission CT include detecting tumors, assessing the extent of injuries or fractures, identifying internal bleeding, evaluating blood flow, and planning medical interventions or surgeries.
While transmission CT imaging provides valuable diagnostic information, it involves exposure to X-ray radiation. Therefore, healthcare providers carefully weigh the benefits of the procedure against the potential risks to ensure the best possible care for the patient.
