Computed Tomography Scan to Generate Cross Sectional Images of the Internal Organs
Computed tomography scan, also called CT scan combines a series of X-ray views taken from different angels to obtain different views of the same organ or structure, and to generate cross sectional images of the organs being studied.
A computed tomography scanner sends X-rays through the body area being studied. The scanner takes less that a second for each rotation and provides an image of a thin slice of the organ. The images obtained during the test are combined and further processed by a computer to produce cross-sectional images of the body. Doctors can look at each of these slices individually or perform additional visualization to make 3-D images.
A contrast material is used to highlight the organs and structures being examined to create clearer images. An iodine dye is used as a contrasting material to check blood flow, find tumors, and look for other medical problems. This contrasting material may be injected in a vein in your arm, or it may be placed into other parts of your body (such as the rectum or a joint).
This technique is used to study different parts of the body such as the chest, belly, pelvis, blood vessels, bones, and the spinal cord. Doctors can capture images of body organs, such as the liver, pancreas, intestines, kidneys, bladder, adrenal glands, lungs, and heart. CT scan is performed to analyze traumatic injuries such as blood clots or skull fractures, tumors and other infections.
This is considered to be a painless procedure that provides accurate images of body structures apart from guiding the radiologist in performing certain procedures, such as biopsies of suspected cancers and removal of internal body fluids for various tests.