The statistical efficiency of filtered backprojection in emission tomography

Technical Report · Mon Sep 25 00:00:00 EDT 1995

DOI:https://doi.org/10.2172/110174· OSTI ID:110174

Kuruc, A

While there has been much interest in developing tomographic reconstruction algorithms that are more statistically efficient than filtered backprojection (FB), the degree of improvement possible has not been well understood. We present an algorithm-independent theory of statistical accuracy attainable in emission tomography that provides a geometrical interpretation of the statistical efficiency of FB. Our analysis shows that, in general, one can build unbiased estimators with smaller variance than FB. The improvement in performance is obtained by exploiting the range properties of the Radon transform.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 110174
• Report Number(s): LBL-37749; ON: DE96001015
• Resource Relation: Other Information: PBD: 25 Sep 1995
• Country of Publication: United States
• Language: English

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