Computed Tomography (CT) Scan: Definition
A CT scan uses x-ray technology to take multiple views of the inside of the body. Compared to regular x-rays, a CT scan can take clearer and more detailed images of organs, bone, soft tissue, blood vessels, and other parts of the body.
CT Scan of the Head
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Some of the primary uses for CT scans include:
- Looking for bleeding inside the body, especially the in the skull.
- Studying the chest and abdomen
- Determining the size and location of a tumor
- Diagnosing and treating skeletal problems
- Diagnosing blood vessel diseases
- Planning radiation treatments for cancer
- Guiding biopsies and other tests
- Planning surgery
- Identifying injuries from trauma
Last reviewedFebruary 2014by Michael Woods, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.