Minimizing radiation dose in coronary CT angiography using dual single-cardiac phase acquisition with a whole-heart motion correction technology: a prospective randomized study on image quality.

ABSTRACT:

Background

Coronary computed tomography angiography (CCTA) plays an increasingly important role in coronary artery disease (CAD) evaluation, but radiation dose remains a clinical concern. Conventional multi-cardiac phase (CMP) scanning covers wide R-R intervals to ensure optimal image quality, leading to higher radiation exposure. Recent advances in motion correction technology, particularly whole-heart motion correction algorithms, offer potential solutions for dose reduction. This study aimed to evaluate the feasibility of using dual single-cardiac phase (DSP) acquisition (end-systole: 45% R-R interval and end-diastole: 75% R-R interval) in CCTA with a whole-heart motion correction (SnapShot Freeze 2, SSF2) technology to minimize radiation dose and maintain image quality in compa

SUBMITTER: Fang X 

PROVIDER: S-EPMC12397654 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature