SUMMARYThis paper uses simulations of numerical phantoms to compare the performance of different iterative-approximation methods of aperture correction in single-photon emission computed tomography (SPECT); aperture correction is employed to remove blurrings in the reconstructed image that are caused by the collimator used to acquire SPECT data. The comparisons take the size of the aperture angle, radius of the detector's rotation, and amount of Poisson noise as parameters, and follow quantitative standards as a basis for visually assessing the images obtained from seven different iterative correction methods.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.