“`html Gallstones are primarily diagnosed through medical imaging examinations. Common methods include ultrasound, computed tomography (CT), and magnetic resonance imaging (MRI). Ultrasound is the preferred diagnostic method for gallstones. It is easy to perform, affordable, and non-invasive, providing a clear view of the size, location, and number of stones. For gallbladder stones, ultrasound has high sensitivity and specificity. When ultrasound cannot provide a clear diagnosis or when more information about the relationship between the stones and surrounding tissues is needed, CT scans can be utilized. CT offers more detailed anatomical structure information, which can help detect small stones or bile... Learn more