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Hybrid System for Simultaneous Fluorescence and X-Ray Computed Tomography

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7 Author(s)
Schulz, R.B. ; Dept. of Biol. Imaging, Tech. Univ. Munich, Munich, Germany ; Ale, A. ; Sarantopoulos, A. ; Freyer, M.
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A hybrid imaging system for simultaneous fluorescence tomography and X-ray computed tomography (XCT) of small animals has been developed and presented. The system capitalizes on the imaging power of a 360 ??-projection free-space fluorescence tomography system, implemented within a microcomputed tomography scanner. Image acquisition is based on techniques that automatically adjust a series of imaging parameters to offer a high dynamic range dataset. Image segmentation further allows the incorporation of structural priors in the optical reconstruction problem to improve the imaging performance. The functional system characteristics are showcased, and images from a brain imaging study are shown, which are reconstructed using XCT-derived priors into the optical forward problem.

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Medical Imaging, IEEE Transactions on  (Volume:29 ,  Issue: 2 )