Component based normalization method for rotating dual head PET scanner

[摘要] 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.

[发布机构] Department of Biomedical Engineering, Technological Educational Institute of Athens, Greece^1;Department of Medical Physics, School of Medicine, University of Patras, Greece^2

[效力级别] 医药卫生 [学科分类] 卫生学

[关键词] Attenuation correction;Component-based normalizations;Correction factors;Detector efficiency;Geometric effects;PET reconstruction;PET scanner;Transaxial