No extensive preparation is usually required unless contrast dye is being used. In that case, fasting for a few hours might be necessary.

The scan itself usually takes about 10-15 minutes. The total process may take around 20-30 minutes, including any preparation.

The scan is painless. Patients may need to lie still in a specific position, but there is no discomfort involved in the imaging process.

The scan uses a low dose of radiation. If contrast dye is needed, patients with iodine allergies or kidney issues should inform their doctor, as the dye may not be suitable for them.