Journal
JOURNAL OF BIOMEDICAL OPTICS
Volume 18, Issue 6, Pages -Publisher
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
DOI: 10.1117/1.JBO.18.6.061227
Keywords
confocal microscopy; mosaicing; strip mosaicing; tissue flattening; Mohs surgery; lumpectomy; mastectomy; surgical pathology
Funding
- NIH from NIBIB's Image Guided Interventions Program [R01EB012466]
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Confocal mosaicing microscopy is a developing technology platform for imaging tumor margins directly in freshly excised tissue, without the processing required for conventional pathology. Previously, mosaicing on 12-x -12 mm(2) of excised skin tissue from Mohs surgery and detection of basal cell carcinoma margins was demonstrated in 9 min. Last year, we reported the feasibility of a faster approach called strip mosaicing, which was demonstrated on a 10- x -10 mm(2) of tissue in 3 min. Here we describe further advances in instrumentation, software, and speed. A mechanism was also developed to flatten tissue in order to enable consistent and repeatable acquisition of images over large areas. We demonstrate mosaicing on 10- x -10 mm(2) of skin tissue with 1-mu m lateral resolution in 90 s. A 2.5- x -3.5 cm(2) piece of breast tissue was scanned with 0.8-mu m lateral resolution in 13 min. Rapid mosaicing of confocal images on large areas of fresh tissue potentially offers a means to perform pathology at the bedside. Imaging of tumor margins with strip mosaicing confocal microscopy may serve as an adjunct to conventional (frozen or fixed) pathology for guiding surgery. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
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