Tracking the Enterion Capsule

We use scintigraphic imaging to track the Enterion^TM capsule. A small amount of indium-111 (¹¹¹In) is sealed in the capsule, which is dosed to a volunteer with a water drink containing technetium-99m (^99mTc). The radiolabelled water provides an outline of the GI tract, and the ¹¹¹In radiolabel allows us to superimpose the Enterion capsule to map its location precisely.