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Slomka B, Duan S, Knapp TG, Lima N, Sontz R, Merchant JL, Sawyer TW. Design, fabrication, and preclinical testing of a miniaturized, multispectral, chip-on-tip, imaging probe for intraluminal fluorescence imaging of the gastrointestinal tract. Front Photon 2023; 3:1067651. [PMID: 37691859 PMCID: PMC10488317 DOI: 10.3389/fphot.2022.1067651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Gastrointestinal cancers continue to account for a disproportionately large percentage of annual cancer deaths in the US. Advancements in miniature imaging technology combined with a need for precise and thorough tumor detection in gastrointestinal cancer screenings fuel the demand for new, small-scale, and low-cost methods of localization and margin identification with improved accuracy. Here, we report the development of a miniaturized, chip-on-tip, multispectral, fluorescence imaging probe designed to port through a gastroscope working channel with the aim of detecting cancerous lesions in point-of-care endoscopy of the gastrointestinal lumen. Preclinical testing has confirmed fluorescence sensitivity and supports that this miniature probe can locate structures of interest via detection of fluorescence emission from exogenous contrast agents. This work demonstrates the design and preliminary performance evaluation of a miniaturized, single-use, chip-on-tip fluorescence imaging system, capable of detecting multiple fluorochromes, and devised for deployment via the accessory channel of a standard gastroscope.
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Affiliation(s)
- Bridget Slomka
- Department of Biomedical Engineering, College of Engineering, University of Arizona, Tucson, AZ, United States
| | - Suzann Duan
- Department of Medicine, College of Medicine Tucson, University of Arizona, Tucson, AZ, United States
| | - Thomas G. Knapp
- Department of Biomedical Engineering, College of Engineering, University of Arizona, Tucson, AZ, United States
| | - Natzem Lima
- Wyant College of Optical Sciences, University of Arizona, Tucson, Arizona, United States
| | - Ricky Sontz
- Department of Medicine, College of Medicine Tucson, University of Arizona, Tucson, AZ, United States
| | - Juanita L. Merchant
- Department of Medicine, College of Medicine Tucson, University of Arizona, Tucson, AZ, United States
| | - Travis W. Sawyer
- Department of Biomedical Engineering, College of Engineering, University of Arizona, Tucson, AZ, United States
- Wyant College of Optical Sciences, University of Arizona, Tucson, Arizona, United States
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