Feasibility of coronary calcium and stent image subtraction using 320-detector row CT angiography.

ABSTRACT:

Background

The reader confidence and diagnostic accuracy of coronary CT angiography (CCTA) can be compromised by the presence of calcified plaques and stents causing blooming artifacts. Compared to conventional invasive coronary angiography (ICA), this may cause an overestimation of stenosis severity leading to false-positive results. In a pilot study, we tested the feasibility of a new coronary calcium image subtraction algorithm in relation to reader confidence and diagnostic accuracy.

Methods

Forty-three patients underwent clinically indicated ICA and CCTA using a 320-detector row CT. Median Agatston score was 510. Two data sets were reconstructed: a conventional CCTA (CCTAconv) and a subtracted CCTA (CCTAsub), where calcifications detected on noncontrast images were subt

SUBMITTER: Fuchs A 

PROVIDER: S-EPMC6290475 | biostudies-literature | 2015 Sep-Oct

REPOSITORIES: biostudies-literature