Trial reportDiagnostic and interventional radiology (Ankara, Turkey)2021
Reduction of cardiac motion artifact in step-and-shoot coronary CT angiography with third-generation as compared with second-generation dual-source CT scanners.
Trial report in Diagnostic and interventional radiology (Ankara, Turkey), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Comparative Analysis of Image Quality of Cardiovascular Computed Tomography in Pediatric Congenital Heart Disease in Sedated vs. Non-sedated Patients: A Single-Center Retrospective Study.Pediatric cardiology · 2026Article
- Effect of ZeeFree algorithm on the reduction of stair-step artifacts for coronary computed tomography angiography.Scientific reports · 2026Article
- Diagnostic performance of coronary computed tomography (CT) angiography without electrocardiographic (ECG)-gating: comparison with invasive coronary angiography.Quantitative imaging in medicine and surgery · 2026Article
- Effect of a breathing exercise program on coronary artery motion artifacts in 256 rows of coronary computed tomography angiography in patients with different heart rate variability.Quantitative imaging in medicine and surgery · 2025Article
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Authors and funding
6 authors.
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Abstract
purposeWe aimed to compare the effects of misregistration (stair-step artifact) occurrence during coronary computed tomography angiography (CCTA) using third- and second-generation dual-source computed tomography (DSCT) scanners. METHODSÇ: CCTA was performed in consecutive patients with suspected coronary heart disease. Patients were randomly assigned to two groups and imaged using a third-generation (n=68; group A) or second-generation (n=63; group B) DSCT scanner. Heart rate (HR), heart rate variability (HRV), the number of acquisition steps required, and the anatomical cardiac length of each patient were recorded and compared between the two groups. Qualitative interpretation and analyses were scored with respect to subjective image quality and misregistration (stair-step artifact) by two interpreters. Cohen's kappa was used to evaluate the consistency between the observers.
resultsAll CCTA images (100%) on both DSCT scanners yielded satisfactory image quality, with a subjective image quality score of 4.21±0.17. The consistency between the two observers with respect to misregistration and subjective scores were good (κ= 0.91 and 0.92, respectively). Both the number of acquisition steps required and the scan length of each patient in group A differed significantly (p < 0.001) from those in group B; there were significantly fewer artifacts in group A than in group B (p < 0.001). Misregistration artifacts did not correlate with the HRs or HRVs between two required acquisition steps (p > 0.20).
conclusionAs compared with second-generation DSCT, the reduced number of acquisition steps required and the shorter scan length in third-generation DSCT reduced the occurrence of misregistration artifacts in CCTA images.
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