Model-based iterative reconstruction: effect on patient radiation dose and image quality in pediatric body CT.

ABSTRACT:

Purpose

To retrospectively compare image quality and radiation dose between a reduced-dose computed tomographic (CT) protocol that uses model-based iterative reconstruction (MBIR) and a standard-dose CT protocol that uses 30% adaptive statistical iterative reconstruction (ASIR) with filtered back projection.

Materials and methods

Institutional review board approval was obtained. Clinical CT images of the chest, abdomen, and pelvis obtained with a reduced-dose protocol were identified. Images were reconstructed with two algorithms: MBIR and 100% ASIR. All subjects had undergone standard-dose CT within the prior year, and the images were reconstructed with 30% ASIR. Reduced- and standard-dose images were evaluated objectively and subjectively. Reduced-dose images were evaluate

SUBMITTER: Smith EA 

PROVIDER: S-EPMC4228752 | biostudies-literature | 2014 Feb

REPOSITORIES: biostudies-literature