Presentation
4 March 2019 Transnasal introduction catheter, a new platform for imaging and biopsying the gastrointestinal (GI) tract (Conference Presentation)
Author Affiliations +
Proceedings Volume 10854, Endoscopic Microscopy XIV; 108540L (2019) https://doi.org/10.1117/12.2510381
Event: SPIE BiOS, 2019, San Francisco, California, United States
Abstract
Upper endoscopy is a standard technique for imaging, sampling, and treating gastrointestinal tissue. Endoscopy is frequently requiring the subjects who undergo the procedure be consciously sedated. Sedation necessitates that the endoscopy procedure be conducted in a specialized setting to mitigate complications should they arise. Endoscopy is further problematic for infants and young children (aged 0-24 months) who sometimes need to be anesthetized. These issues motivate alternative methods for upper gastrointestinal tract visualization and biopsy that do not require conscious sedation/anesthesia. To address this need, we have developed a double lumen 6.5 Fr transnasal introduction catheter (TNIC). During transnasal insertion, real-time OCT imaging provides confirmation of the anatomical location of the device. Once in the stomach, a safe and high-density liquid metal fills a balloon at the distal tip of the TNIC, allowing it to passively transit through stomach into the small intestine. Once properly positioned, OCT-guided instruments for imaging and biopsy can be inserted through main lumen of the TNIC, performing many of the functions of conventional endoscopy and advanced endomicroscopy. To test the feasibility of the TNIC, we conducted a clinical study using the first version of the device in 4 unsedated normal volunteers. Results showed detailed OCT endomicroscopy images of the esophagi and duodena. These results suggest that TNIC may be an effective, less invasive method for the diagnosis of upper GI tract conditions.
Conference Presentation
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hamid Farrokhi, Jing Dong, David O. Otuya, Yogesh Verma, Sarah K. Zemlok, Aditya Kumar, Rachel E. Shore, Sarah L. L. Giddings, Nitasha G. M. Bhat, Omair Shakil, Catriona N. Grant, Norman Nishioka, Mireille Rosenberg, Christopher Damman, and Guillermo J. Tearney "Transnasal introduction catheter, a new platform for imaging and biopsying the gastrointestinal (GI) tract (Conference Presentation)", Proc. SPIE 10854, Endoscopic Microscopy XIV, 108540L (4 March 2019); https://doi.org/10.1117/12.2510381
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KEYWORDS
Endoscopy

Biopsy

Endomicroscopy

Optical coherence tomography

Stomach

Francium

Liquids

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