Observer repeatability and interscan reproducibility of 18F-sodium fluoride coronary microcalcification activity.

ABSTRACT:

Background

We aimed to establish the observer repeatability and interscan reproducibility of coronary ¹⁸F-sodium-fluoride positron emission tomography (PET) uptake using a novel semi-automated approach, coronary microcalcification activity (CMA).

Methods

Patients with multivessel coronary artery disease underwent repeated hybrid PET and computed tomography angiography (CTA) imaging (PET/CTA). CMA was defined as the integrated standardized uptake values (SUV) in the entire coronary tree exceeding 2 standard deviations above the background SUV. Coefficients of repeatability between the same observer (intraobserver repeatability), between 2 observers (interobserver repeatability) and coefficient of reproducibility between 2 scans (interscan reproducibility), were det

SUBMITTER: Tzolos E 

PROVIDER: S-EPMC7728624 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature