ArticleQuantitative imaging in medicine and surgery2025
Feasibility of alternative trigger deletion to improve 64-slice coronary computed tomography angiography quality in patients with increased heart rate.
Article in Quantitative imaging in medicine and surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: A high heart rate (HR) increases motion artifacts in coronary computed tomography angiography (CCTA). This retrospective study aimed to investigate the feasibility of using a novel electrocardiogram (ECG)-edit technique involving alternate trigger deletion to improve the quality of 64-slice CCTA images in patients with increased HR. Methods: This retrospective single-center study enrolled 53 symptomatic cardiac patients with increased HR (≥75 beats per minute). CCTA was acquired on a 64-slice computed tomography (CT) scanner using a retrospective ECG-gated acquisition protocol. Images were reconstructed without the ECG-edit function, and with the ECG-edit function of alternate trigger deletion. Two experienced radiologists evaluated the subjective image quality of the coronary artery segments using a four-point Likert scale (on which 1 represented non-interpretable, and 4 represented excellent). The interpretability and objective image quality of the two reconstruction methods were compared. Results: In total, 53 patients (mean age: 57.57±14.78 years; 29 men) were included in the study. The implementation of the ECG-edit significantly improved the Likert scores and interpretability at the per-segment (2.94±0.70 Conclusions: The ECG-edit function of alternate trigger deletion for CCTA improved the subjective image quality, interpretability, and objective image quality of patients with increased HR.
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