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CT - CAT Scan

Computerized Axial Tomography (CAT)

At St. Joe's, we utilize state-of-the-art CT software with the latest of reconstruction techniques to analyze images. This software allows three-dimensional reconstruction of images, transmitted to board-certified radiology specialists for diagnosis.

A CT scan uses X-ray images with the aid of a computer to generate cross-sectional and, in some cases, 3D views of the body. Think of the CT images as viewing a loaf of bread. With all the slices together, you can see the entire loaf. However, if you want to look at each slice, you have the ability to see what is inside the loaf. Once all the slices are added together again, you have that 3D view.

CT scans are performed to analyze the internal structures of the body. This includes the head, where traumatic injuries such as blood clots, skull fractures, tumors, and infections can be identified. In the spine, the bony structure of the vertebral column can be defined, as can the discs and spinal cord. In the abdomen, CT helps to identify anatomy such as the liver, gallbladder, pancreas, spleen, aorta, kidneys, uterus, and ovaries. CT is used to assess the presence or absence of tumors, infection, abnormal anatomy, or changes of the body due to trauma.

Occasionally, contrast may be given to further enhance the scan and various structural relationships. This is usually painless, and may involve drinking a solution prior to your CT scan. You may also require intravenous (IV) contrast for your exam. In this case you will be given an IV prior to your exam for the contrast to be administered.

Most procedures take 15 to 30 minutes and are relatively painless. Your technologist will do what they can to make you as comfortable as possible.


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