Component based normalization method for rotating dual head PET scanner. (August 2015)

• Record Type: Journal Article
• Authors: Efthimiou, N; Loudos, G; Panayiotakis, G S
• Is Part Of: Journal of physics. Number 637(2015)
• Publication Date: 2015-08
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/637/1/012007
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: Component based normalization is a well-established method to calculate correction factors for unbiased and reliable PET reconstruction. Several methods have been studied and validated for cylindrical PET scanners. In this work we adapted a method already presented for cylindrical scanners to rotating dual head PET scanners. The model included corrections for detector efficiency, axial and transaxial geometric effects, crystal interference and attenuation corrections. Results from a simulated realistic dual head PET showed that the adaptation is valid. The images are significantly improved in terms of homogeneity, resolution and background contribution.