A comparison between 3D OSEM and FBP image reconstruction algorithms in spect

Abstract

In this chapter, we will only concern our selves with the two most widely used algorithms in SPECT reconstruction, namely the FBP and Ordered-Subsets Expectation Maximization (OSEM) algorithms. This chapter describes the basic principles of these two algorithms, and summarises SPECT image attenuation and scatter correction methods. Finally, it presents a study evaluating the volumetric iterative reconstruction algorithm OSEM 3-D, and compares its performance with the FBP algorithm. © 2009 Springer Netherlands.