Feasibility of radiation dose reduction with iterative reconstruction in abdominopelvic CT for patients with inappropriate arm positioning.

ABSTRACT:

Background

The arms-down position increases computed tomography (CT) radiation dose. Iterative reconstruction (IR) could enhance image quality without increasing radiation dose in patients with arms-down position.

Aim

To investigate the feasibility of reduced-dose CT with IR for patients with inappropriate arm positioning.

Methods

Twenty patients who underwent two-phase abdominopelvic CT including standard-dose and reduced-dose CT (performed with 80% of the radiation dose of the standard protocol) with their arms positioned in the abdominal area were included in this study. Reduced-dose CT images were reconstructed using filtered back projection (FBP), hybrid IR, and iterative model reconstruction (IMR). These images were compared with standard-dose CT images reconstr

SUBMITTER: Seo N 

PROVIDER: S-EPMC6312263 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature