The scan itself generally takes about 15-20 minutes, but the entire process may take around 30-40 minutes, including preparation and contrast administration.

The procedure is painless. Patients may feel a brief warm sensation when the contrast dye is injected, but this feeling quickly passes.

The scan uses a low dose of radiation, and there’s a small risk of allergic reaction to the contrast dye, especially in individuals with iodine allergies. Patients with kidney conditions should consult their doctor due to the contrast agent.

Preparation might include fasting for a few hours before the scan, and patients should remove any metal objects from their chest area. It’s essential to inform the healthcare provider if you’re pregnant, have kidney problems, or have any known allergies.