Noninvasive Anatomical and Functional Imaging for Hemodynamic Relevance in Right Coronary Artery Anomalies.

ABSTRACT:

Importance

Right anomalous aortic origin of a coronary artery (R-AAOCA) is a rare congenital condition increasingly diagnosed with the growing use of cardiac imaging. Due to dynamic compression of the anomalous vessel, invasive fractional flow reserve (FFR) during a dobutamine-atropine volume challenge (FFR-dobutamine) is considered the reference standard. A reliable alternative method is needed to reduce extensive invasive testing, but it remains uncertain whether noninvasive imaging can accurately assess the hemodynamic relevance of R-AAOCA.

Objective

To evaluate the diagnostic performance of noninvasive anatomical and functional cardiac imaging to determine the hemodynamic relevance of R-AAOCA compared with the FFR-dobutamine reference standard.

Design, setting, and pa

SUBMITTER: Bigler MR 

PROVIDER: S-EPMC12423952 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature