ArticleThe international journal of cardiovascular imaging2013
Low-dose coronary-CT angiography using step and shoot at any heart rate: comparison of image quality at systole for high heart rate and diastole for low heart rate with a 128-slice dual-source machine.
Article in The international journal of cardiovascular imaging, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Age-related differences in image quality of prospectively ECG-triggered axial and helical scans for coronary CT angiography.Radiological physics and technology · 2016Trial
- New reconstruction algorithm for stack artifact reduction in breathing-adaptive four-dimensional computed tomography.Physics and imaging in radiation oncology · 2026Article
- Improving image quality by reducing breathing artifacts in CT of patients early after coronary artery bypass graft surgery.The international journal of cardiovascular imaging · 2026Article
- Effect of ZeeFree algorithm on the reduction of stair-step artifacts for coronary computed tomography angiography.Scientific reports · 2026Article
- Increasing the rate of datasets amenable to CTEuropean journal of radiology open · 2024Article
- Low dose contrast media in step-and-shoot coronary angiography with third-generation dual-source computed tomography: feasibility of using 30 mL of contrast media in patients with body surface area <1.7 mQuantitative imaging in medicine and surgery · 2021Article
- Relationship between heart rate and optimal reconstruction phase in coronary CT angiography performed on a 256-slice multidetector CT.The British journal of radiology · 2019Article
- Defining the optimal systolic phase targets using absolute delay time for reconstructions in dual-source coronary CT angiography.The international journal of cardiovascular imaging · 2016Article
- Dose study of electrocardiogram automatic tube current modulation technology in prospective coronary computed tomography angiography scans of overweight patients.Experimental and therapeutic medicine · 2015Article
- Comparison Between Prospectively Electrocardiogram-Gated High-Pitch Mode and Retrospectively Electrocardiogram-Gated Mode for Dual-Source CT Coronary Angiography.Polish journal of radiology · 2015Article
- Diagnostic quality of dual-source coronary CT examinations performed without heart rate control: importance of obesity and heart rate on image quality.Journal of computer assisted tomographyArticle
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Abstract
To compare image quality of coronary CT angiography in step-and-shoot mode at the diastolic phase at low heart rates (<70 bpm) and systolic phase at high heart rates (≥70 bpm). We prospectively included 96 consecutive patients then excluded 5 patients with arrhythmia. Coronary CT-angiography was performed using a dual-source 128-slice CT machine, at the diastolic phase in the 55 patients with heart rates <70 bpm (group D) and at the systolic phase in the 36 patients with heart rates ≥70 (group S). Image quality was scored on a 5 point-scale (1, not interpretable; 2, insufficient for diagnosis; 3, fair, sufficient for diagnosis; 4, good; 5, excellent). In addition, we compared the number of stair-step artifacts in the two groups. Mean image quality score was 4 (0.78) in group D and 4.1 (0.34) in group S (NS), with an unequal distribution (p = 0.01). Step artifacts were seen in 44 % of group D and 18 % of group S patients (p = 0.02). In 3 group D patients and no group S patients, the image score was <3 due to artifacts, requiring repeat CT-angiography. When performing dual-source 128-slice CT-angiography, step-and-shoot acquisition provides comparable mean image quality in systole, with less variability and fewer stair-step artifacts, compared to diastole. This method may be feasible at any heart rate in most patients in sinus rhythm, allowing low-dose prospective acquisition without beta-blocker premedication.
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