This is the least invasive and safe procedure used to examine the patient’s digestive tract. A wireless camera is fitted inside a vitamin sized capsule which the patient swallows and as it passes through the digestive tract, thousands of pictures are captured by the camera. These pictures are transmitted to a recorder which is fitted in the belt wore by the patient around their waist. The doctors retrieve pictures from the recorder later on for the examination of patient’s small intestine and surrounding areas.

Wireless capsule screening is useful to find out any gastrointestinal bleeding and its cause, diagnose any inflammatory bowel diseases, look out for tumors or polyps that may be in small intestine  and diagnose coeliac disease in majority of cases.

The patient is asked to stop eating few hours before the screening so that camera can capture clear images of the digestive tract. After ingestion of the capsule, patients are instructed to keep a record of symptoms and monitor the lights on the data recorder to confirm that the signal is being received. Patients are encouraged to avoid heavy lifting, bending or exercise that may cause the sensors to separate. A diet of clear liquids is allowed after 2 hours and a light meal after 4 hours. The data-recording system is disconnected from the patient after the battery gets discharged. The capsule is disposable and therefore passes through the body in excreta. The data recorder is subsequently connected to a workstation for transfer of the acquired images.