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Evaluation of three analytical methods for reconstruction from cone-beam data on a short circular scan

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5 Author(s)
Frank Dennerlein ; Department of Radiology (UCAIR), University of Utah, Salt Lake City, USA ; Frederic Noo ; Stefan Hoppe ; Joachim Hornegger
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This article focuses on the problem of three- dimensional image reconstruction from cone-beam data acquired along a partial circular scan (short-scan): We present a detailed comparative evaluation of three state-of-the-art analytical algorithms suggested to achieve image reconstruction in this short-scan geometry. Our evaluation involves quantitative studies, such as the estimation of the contrast-to-noise performance, of the achievable spatial resolution and of the cone-beam artifact behavior of these reconstruction algorithms. In addition to that, we also provide a visual assessment of image quality by evaluating reconstructions of the FORBILD head phantom and a disc phantom. The numerical results presented in this paper were obtained using computer-simulated cone-beam data, while focusing on non-truncated projection data and geometry parameters that are similar to those of real medical C-arm devices.

Published in:

2007 IEEE Nuclear Science Symposium Conference Record  (Volume:5 )

Date of Conference:

Oct. 26 2007-Nov. 3 2007