Optical Frequency Domain Imaging Capsule Marking

**Semantic type:** Conceptual Entity

**Definition:** A method for marking the esophagus for biopsy. A tethered capsule containing an imaging device travels down the esophagus using peristalsis. When a target is identified the capsule makes cautery marks on the superficial layers of the esophageal mucosa.

**Synonyms:** - OFDI Capsule - OFDI Capsule Marking - Optical Frequency Domain Imaging Capsule