Computed tomography

From Psy3241

A computed tomography scan, also known as CT, takes detailed X-ray images of the different structures inside of the body. During the test the patient lies on the table while the CT scanner, a large circular machine sends X-rays through the area of the body being studied. To allow the image to be clear, an iodine dye is used sometimes to produce an image with more contrast and detail.

A computed tomography scan is mainly used for the chest, belly, pelvis, or the arms and legs. Scans are also common for body organs, but can also take images of blood vessels, bones, and the spinal cord.

CT scans are very helpful to study the brain as they can show cross-sectional views. The use of CT scans in studying the brain is to allow detection of hematomas, tumors, and strokes.