Using Spectrally Encoded Confocal Microscopy (SECM) to Visualise the Esophagus Using an SECM Probe

Subjects with a previous diagnosis of Barrett's Esophagus will be recruited in the study and undergo SECM probe imaging while using conscious sedation, pulse oximetry and blood pressure monitoring. The probe will be inserted the predetermined required distance in the esophagus using a guide wire. Once the SECM imaging probe is in place, spiral SECM image data will be continuously collected over a pre-determined length (approximately 5cm).