CT guided biopsy can assist your doctor in obtaining a biopsy, like a needle biopsy, in order to guide the needle to the site of the biopsy and to provide rapid and accurate location of the needle. CT enables imaging of areas that are typically can't be seen. This allows your doctor to see the targeted area clearly and help to ensure that the tissue being removed is from the appropriate one.
The CT guided biopsy requires that you be placed into the CT scanner, typically a small, enclosed area. Depending on the specific type of biopsies that you are having done, certain anesthetics will be used, so you're your doctor about any drug.