PET vs. SPECT: In the context of ongoing developments (Review article)

Arman Rahmim

Research output: Contribution to journalReview articlepeer-review

5 Scopus citations


This paper intends to compare the abilities of the two major imaging modalities in nuclear medicine imaging: Positron Emission Tomography (PET) and Single Photon Emission Computed Tomography (SPECT). The motivations are many-fold: (i) To gain a better understanding of the strengths and limitations of the two imaging modalities in the context of recent and ongoing developments in hardware and software design; (ii) To emphasize that certain issues, historically and commonly thought as limitations, may now be instead viewed as challenges that can be addressed; (iii) To point out that existing PET and SPECT scanners in the field can (much) benefit from improvements in image-reconstruction software; (iii) To point-out (to engineers, physicists and software-developers) important areas of research in PET and SPECT imaging that will be instrumental to further improvements in the two modalities;.

Original languageEnglish (US)
Pages (from-to)1-20
Number of pages20
JournalIranian Journal of Nuclear Medicine
Issue number25
StatePublished - Sep 1 2006


  • Animal imaging
  • Attenuation
  • Collimator
  • Dual isotope imaging
  • Dynamic imaging
  • PET
  • Random coincidence
  • Sensitivity
  • Spatial resolution
  • Temporal resolution
  • Time-of-Flight

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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