Intercomparison of MR-informed PET image reconstruction methods.

ABSTRACT:

Purpose

Numerous image reconstruction methodologies for positron emission tomography (PET) have been developed that incorporate magnetic resonance (MR) imaging structural information, producing reconstructed images with improved suppression of noise and reduced partial volume effects. However, the influence of MR structural information also increases the possibility of suppression or bias of structures present only in the PET data (PET-unique regions). To address this, further developments for MR-informed methods have been proposed, for example, through inclusion of the current reconstructed PET image, alongside the MR image, in the iterative reconstruction process. In this present work, a number of kernel and maximum a posteriori (MAP) methodologies are compared, with the aim of i

SUBMITTER: Bland J 

PROVIDER: S-EPMC6899618 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature