International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2572

Full Length Research Paper

Compensation effect of implementation of filters in use of unsuitable collimator in SPECT images

Alireza Sadrmomtaz
Department of Physics, Guilan University, Rasht 41365-1159, Iran.
Email: [email protected]

  •  Accepted: 14 July 2011
  •  Published: 02 September 2011


Use of digital filters to improve the visual quality of SPECT images is a well-established technique. The goal of the filtering is to compensate for loss of detail in an image while reducing noise and improving of image quality. In this paper we studied the results of SPECT one and two line sources (contained with Tc-99 m) images obtained by SPECT equipped with unsuitable collimators (Low Energy General Purpose (LEGP) collimator), under implementation of various filters, to show effect of software filters on the image quality in this situation and capability of mathematical tools to compensate for the hardware flaw. With this result, the best filters with specific parameter for LSF and 2-line sources have been selected and the results have been interpreted.


Key words: SPECT, filters, LEGP collimator.