The procedure begins with the patient swallowing a small capsule containing a tiny camera, light source, and transmitter. As the capsule moves through the digestive system, it captures images at a rate of 2-6 frames per second. These images are sent wirelessly to a recorder worn on a belt around the patient's waist. After 8-12 hours, the capsule is naturally excreted, and the recorded images are reviewed by a doctor.
