Purpose
CT scanning provides detailed assessment of the lungs, chest wall and central chest structures. Common indications include assessment of abnormalities seen on a chest X-ray, staging of tumours, presence and extent of enlarged lymph nodes as well as detailed evaluation of lung parenchymal disorders. Low radiation screening CT of the lungs is also available, particularly in smokers to detect early cancers.
Preparation
No preparation required.
If you are pregnant, it is important to inform the radiographer before you have any scans.
Procedure
The average examination takes approximately 10 minutes. Depending on the indication for the scan, introduction of intravenous iodine – containing contrast medium may be required. You would be required to lie on the CT bed with your arms extended above your head. The table will move slowly through the gantry ring while the X-ray tube rotates around your body. Other than for the possible introduction of the intravenous contrast, there will be no pain or discomfort associated with the procedure.
After Procedure
Normal activities may be continued.