Abstract
Fine optical coherence tomography (OCT) imaging needles that can be integrated with a standard biopsy needle have been developed with a new optics design to improve the optical quality and mechanical robustness, where a fiber-optic lens (that is spliced to a single-mode fiber) and a microreflector are encased within a microglass tube. The design also minimizes the cylindrical lens effect induced by the glass tube and eases the needle assembly process. Real-time cross-sectional OCT imaging of various tissue samples were performed ex vivo using the miniature-imaging needle along with a 1300-nm swept-source OCT system. The preliminary results demonstrate the improved mechanical and optical performance and suggest the potential of the fine OCT needle for minimally invasive interstitial imaging and image-guided biopsy.
Original language | English (US) |
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Article number | 5353608 |
Pages (from-to) | 863-869 |
Number of pages | 7 |
Journal | IEEE Journal on Selected Topics in Quantum Electronics |
Volume | 16 |
Issue number | 4 |
DOIs | |
State | Published - Jul 2010 |
Keywords
- Astigmatism
- OCT needle
- biopsy needle
- interstitial imaging
- optical coherence tomography (OCT)
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering