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SCORE imaging: specimen in a corrected optical rotational enclosure.

ABSTRACT: Visual data collection is paramount for the majority of scientific research. The added transparency of the zebrafish (Danio rerio) allows for a greater detail of complex biological research that accompanies seemingly simple observational tools. We developed a visual data analysis and collection approach that takes advantage of the cylindrical nature of the zebrafish allowing for an efficient and effective method for image capture that we call Specimen in a Corrected Optical Rotational Enclosure imaging. To achieve a nondistorted image, zebrafish were placed in a fluorinated ethylene propylene tube with a surrounding optically corrected imaging solution (water). By similarly matching the refractive index of the housing (fluorinated ethylene propylene tubing) to that of the inner liquid and outer liquid (water), distortion was markedly reduced, producing a crisp imagable specimen that is able to be fully rotated 360 degrees. A similar procedure was established for fixed zebrafish embryos using convenient, readily available borosilicate capillaries surrounded by 75% glycerol. The method described here could be applied to chemical genetic screening and other related high-throughput methods within the fish community and among other scientific fields.

SUBMITTER: Petzold AM

PROVIDER: S-EPMC3117241 | biostudies-literature | 2010 Jun

REPOSITORIES: biostudies-literature

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SCORE imaging: specimen in a corrected optical rotational enclosure.

Petzold Andrew M AM Bedell Victoria M VM Boczek Nicole J NJ Essner Jeffrey J JJ Balciunas Darius D Clark Karl J KJ Ekker Stephen C SC

Zebrafish 20100601 2

Visual data collection is paramount for the majority of scientific research. The added transparency of the zebrafish (Danio rerio) allows for a greater detail of complex biological research that accompanies seemingly simple observational tools. We developed a visual data analysis and collection approach that takes advantage of the cylindrical nature of the zebrafish allowing for an efficient and effective method for image capture that we call Specimen in a Corrected Optical Rotational Enclosure ...[more]

PMID: 20528262

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Project description:The Institute of Image-Guided Surgery (IHU) of Strasbourg is a translational research Institute aiming to develop hybrid surgery techniques. The IHU-SPECTRA research unit, entirely dedicated to the development of fluorescence-guided surgery, was set up to test several innovations as part of a large-scale project (ELIOS: Endoscopic Luminescent Imaging for Precision Oncology Surgery), funded by the ARC Foundation for Cancer Research. The proposed research protocol is part of the ELIOS project and targets in particular colon tumours. The Holy Grail in oncology surgery is the radical removal of cancer cells in order to reduce the rate of tumour recurrences and increase the tumour’s free survival. The administration of a tumour-specific antibody, which fluoresces in the Near-Infrared ranges and which could be univocally recognized at a tumour cellular level, could provide a rapid and accurate evaluation of radical tumour removal. The University Medical Center Groningen (UMCG) has developed a fluorescent tracer coupling Bevacizumab (which targets the Vascular Endothelial Growth Factor = VEGF) with a fluorescent dye, the IRDye800. The initial human results are very promising and no adverse events linked to the fluorescent molecule have been reported. In parallel, an alternative optical technique that does not require the use of a fluorophore, the Hyperspectral Imaging (HSI), is a relatively new method used in image-guided and precision surgery. The company Diaspective Vision GmbH (Pepelw, Germany) produces a HSI camera, the TIVITA system, enabling to obtain spectral information from the tissues. The main advantage of HSI over fluorescence imaging is in that it is a contrast-free imaging and intrinsically quantitative although it does not provide real-time videos. Another innovative optical imaging technology available at the IHU is FF-OCT (Light-CT Scanner, LLTechSAS, Paris, France) which allows non-destructive and high-resolution optical biopsy without tissue treatment. The working hypothesis is that molecular fluorescence enhanced-reality allows greater precision in the differentiation of tumour tissue and healthy tissue in patients with colorectal cancer compared to the immunohistochemistry conventionally used in anatomopathology. In parallel, this technique will be compared to hyperspectral imaging (HSI TIVITA system) and optical imaging (FF-OCT system), two potentially advantageous methods for the detection of tumour tissue.

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SCORE imaging: specimen in a corrected optical rotational enclosure.

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SCORE imaging: specimen in a corrected optical rotational enclosure.

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