Feasibility of alternative trigger deletion to improve 64-slice coronary computed tomography angiography quality in patients with increased heart rate
Year: 2025
Type: article
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: 5.41±3.27) compared to the non-ECG-edit approach (both, P<0.001). 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.
Authors: Lin Shao, Qian-Qian Zhou, Mao Xia, Lin-Hong Chen, Yin-Deng Luo
Language: English
Subfield: Radiology, Nuclear Medicine and Imaging
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W4416455099
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