A non-iterative method for emission tomographic image reconstruction with resolution recovery

Victor C. Soon, Michael A. Miller, Gary D. Hutchins

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

We propose a non-iterative method called Local Regression FBP (LR-FBP) for emission tomographic image reconstruction with resolution recovery. The method processes the sinogram volume data by running a two-dimensional local regression (LR) algorithm over the image projections - this has the effect of improving data signal-to-noise-ratios (SNR) as it fits the image projections thus reducing noise. Resolution recovery is then performed on the fit sinogram and the Filtered Back Projection (FBP) reconstruction using a ramp filter is then applied. The simulation studies presented show that LR-FBP gives lower bias and improved resolution compared to conventional FBP. Imaging studies using the IndyPET-Ell Small Animal PET scanner and the Siemens/CTI Biograph-16 PET/CT scanner show qualitative improvements in image resolution and contrast, as well as possible quantitative improvements in contrast recovery.

Original languageEnglish (US)
Title of host publication2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC
Pages3468-3473
Number of pages6
DOIs
StatePublished - Dec 1 2007
Event2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC - Honolulu, HI, United States
Duration: Oct 27 2007Nov 3 2007

Publication series

NameIEEE Nuclear Science Symposium Conference Record
Volume5
ISSN (Print)1095-7863

Other

Other2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC
CountryUnited States
CityHonolulu, HI
Period10/27/0711/3/07

    Fingerprint

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

Cite this

Soon, V. C., Miller, M. A., & Hutchins, G. D. (2007). A non-iterative method for emission tomographic image reconstruction with resolution recovery. In 2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC (pp. 3468-3473). [4436877] (IEEE Nuclear Science Symposium Conference Record; Vol. 5). https://doi.org/10.1109/NSSMIC.2007.4436877