ArticleEuropean journal of radiology2019
Improved visualization of the coronary arteries using motion correction during vasodilator stress CT myocardial perfusion imaging.
Article in European journal of radiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 10 citations in OpenAlex.
- Clinical evaluation of a motion correction software based on partial angle reconstruction in coronary CT angiography.The international journal of cardiovascular imaging · 2026Article
- Motion compensated reconstruction improves image quality and interpretability of dual-layer coronary CT angiography.European radiology · 2026Article
- Optimizing coronary CT angiography with spectral dual-layer CT: motion-compensated virtual monoenergetic imaging achieves 50% contrast dose reduction in a phantom study.The international journal of cardiovascular imaging · 2026Article
- Feasibility of alternative trigger deletion to improve 64-slice coronary computed tomography angiography quality in patients with increased heart rate.Quantitative imaging in medicine and surgery · 2025Article
- Optimizing coronary computed tomography angiography image quality with motion-compensated reconstruction: a prospective electrocardiogram-triggered mode with second-generation dual-layer spectral detector computed tomography.Journal of thoracic disease · 2025Article
- Optimizing coronary CT angiography quality with motion-compensated reconstruction for second-generation dual-layer spectral detector CT.European radiology · 2025Article
- The influence of motion-compensated reconstruction on coronary artery analysis for a dual-layer detector CT system: a dynamic phantom study.European radiology · 2024Article
- Motion artifact correction in cardiac CT using cross-phase temporospatial information and synergistic attention gate and spatial transformer sub-networks.Physics in medicine and biology · 2024Article
- Artificial Intelligence to Assist in Exclusion of Coronary Atherosclerosis During CCTA Evaluation of Chest Pain in the Emergency Department: Preparing an Application for Real-world Use.Journal of digital imaging · 2021Article
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Authors and funding
9 authors at 3 institutions in 2 countries.
Funding
Abstract
backgroundVasodilator stress computed tomography perfusion (sCTP) imaging is complementary to coronary CT angiography (CCTA), used to determine the hemodynamic significance of coronary artery disease. However, it requires a separate image acquisition due to motion artifacts caused by higher heart rates during stress, resulting in increased iodine contrast dose and radiation. We sought to determine whether a novel motion correction algorithm applied to stress images would improve the visualization of the coronary arteries to potentially allow CCTA + sCTP evaluation in a single scan.
methods28 patients referred for clinically indicated CCTA (iCT, Philips) underwent sCTP imaging (retrospective-gating with dose modulation; 100 kVp and 250 mA; 5.2 ± 4.3 mSv) after regadenoson (0.4 mg, Astellas). Stress images were reconstructed using standard filtered back-projection (FBP) and also processed to generate interaction-free coronary motion-compensated back-projection reconstructions (MCR). Each coronary artery from standard FBP and MCR images was viewed side-by-side by a reader blinded to the reconstruction technique, who graded severity of motion artifact by segment (scale 0-5, with 3 as the threshold for diagnostic quality) and to measure signal-to-noise and contrast-to-noise ratios (SNR, CNR).
resultsVisualization scores were higher with MCR for all coronary segments, including 14/86 (16%) segments deemed as non-diagnostic on FBP images. SNR (7 ± 2) and CNR (15 ± 8) were unchanged by motion-correction (7 ± 3, p = 0.88 and 15 ± 5, p = 0.94, respectively).
conclusionsMCR improves the visualization of coronary anatomy on sCTP images without degrading image characteristics. This algorithm is an important step towards the combined assessment of coronary anatomy and myocardial perfusion in a single scan, which will reduce study time, radiation exposure and contrast dose.
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