Towards universal comparability of pericoronary adipose tissue attenuation: a coronary computed tomography angiography phantom study.

ABSTRACT:

Objectives

Different computed tomography (CT) scanners, variations in acquisition protocols, and technical parameters employed for image reconstruction may introduce bias in the analysis of pericoronary adipose tissue (PCAT) attenuation derived from coronary computed tomography angiography (CCTA). Therefore, the aim of this study was to establish the effect of tube voltage, measured as kilovoltage peak (kVp), and iterative reconstruction on PCAT mean attenuation (PCAT_MA).

Methods

Twelve healthy ex vivo porcine hearts were injected with iodine-enriched agar-agar to allow for ex vivo CCTA imaging on a 256-slice CT and a dual-source CT system. Images were acquired at tube voltages of 80, 100, 120, and 140 kVp and reconstructed by using both filtered back projection a

SUBMITTER: Etter D 

PROVIDER: S-EPMC10017558 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature