Disadvantages Can develop hefty radiation doses for doctor and patient. May experience nephrotoxicity to contrast. Blood product exposure. Invasive procedure with risks of bleeding and infection for patient. Detectors surround patient.
Computer generates image based on different densities available after beam has traversed patient.
Example Metastatic Disease Advantages Excellent soft tissue contrast and discrimination. Facilitates clinical perusal. Allows deep structures to be visualized. Can perform Interventional procedures using CT Disadvantages Relatively expensive. Requires contrast enhancement with risks of nephrotoxicity and anaphylaxis.