Micro-optical coherence tomography capsule for sedation-free esophagus imaging

Hinnerk Schulz-Hildebrandt; Oscar M. Caravaca Mora; Alejandro E. Ortega; Ashwin Panikkar; Edward C. Farewell; Guillermo J Tearney

doi:10.1117/12.3002695

13 March 2024 Micro-optical coherence tomography capsule for sedation-free esophagus imaging

Hinnerk Schulz-Hildebrandt, Oscar M. Caravaca Mora, Alejandro E. Ortega, Ashwin Panikkar, Edward C. Farewell, Guillermo J Tearney

Author Affiliations +

Proceedings Volume PC12820, Endoscopic Microscopy XIX; PC128200B (2024) https://doi.org/10.1117/12.3002695
Event: SPIE BiOS, 2024, San Francisco, California, United States

Abstract

We have developed a new µOCT tethered Capsule Endomicroscopy imaging system for the diagnosis of Inflammatory bowel disease and Gastrointestinal cancer with micrometer resolution. The capsule we built measures 30 mm in length and 11 mm in diameter. By employing an optical design that incorporates the mirror tunnel design, we achieved a lateral resolution of less than 4 µm across a depth of field of 450 µm. The spectrometer we designed provides a resolution of 1.8 µm over a 4 mm imaging range, with an A-scan rate of up to 300 kHz. Imaging performance is demonstrated by beam profiling and imaging esophagus ex vivo.

Conference Presentation

Citation Download Citation

Hinnerk Schulz-Hildebrandt, Oscar M. Caravaca Mora, Alejandro E. Ortega, Ashwin Panikkar, Edward C. Farewell, and Guillermo J Tearney "Micro-optical coherence tomography capsule for sedation-free esophagus imaging", Proc. SPIE PC12820, Endoscopic Microscopy XIX, PC128200B (13 March 2024); https://doi.org/10.1117/12.3002695

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