The scan usually takes about 10-15 minutes, though the entire process, including preparation, may take up to 30 minutes.

The scan is completely non-invasive and painless. Patients just need to lie still while images are captured.

The scan uses a low dose of radiation, which is generally safe. However, it is avoided during pregnancy unless deemed absolutely necessary.

No special preparation is usually required. Patients may be asked to drink water before the scan to fill the bladder, but fasting or other preparation is not generally needed.