ArticleEuropean radiology2024
Ultra-high-resolution photon-counting detector CT in evaluating coronary stent patency: a comparison to invasive coronary angiography.
Article in European radiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 1 of them a synthesis that pooled it.
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Who cites it
44 citing papers in PubMed, 1 synthesis or guideline pooled it, 68 citations in OpenAlex.
- Comparison of photon-counting CT angiography with energy-integrating CT angiography in coronary artery stenosis: a systematic review and meta-analysis.BMC medical imaging · 2025Pooled it
- In vivo coronary stent evaluation using photon-counting computed tomography: diagnostic performance.European radiology · 2026Article
- High-Z Contrast Media for Coronary Photon-counting Detector CT Angiography: Improved Quantification of Calcified Stenoses.Investigative radiology · 2026Article
- Ultra-High-Resolution Photon-Counting CT Angiography for Noninvasive Detection of Neurovascular In-Stent Restenosis.Stroke · 2026Article
- Fractional Flow Reserve Measurement Using Dynamic CT Perfusion Imaging in Patients with Heavy Coronary Calcification and Stent.Diagnostics (Basel, Switzerland) · 2026Article
- ESR Innovation in Focus: photon-counting detector CT.European radiology · 2026Article
- Effect of quantum iterative reconstruction on coronary stent assessment in ultra-high resolution photon-counting detector CT: a phantom study.European radiology experimental · 2026Article
- Ultra-high resolution photon-counting detector coronary CT angiography: diagnostic accuracy in patients with high Agatston scores.European radiology · 2026Article
- Clinical benefits and current challenges of photon-counting detector CT in vascular imaging.Radiology advances · 2026Review
- Comparative analysis of photon-counting and energy-integrating detector CT to identify obstructive coronary artery disease.European radiology · 2026Article
- Coronary Plaque Vulnerability and Pericoronary Adipose Tissue Inflammation: Emerging Insights from Advanced CT Imaging.Medicina (Kaunas, Lithuania) · 2026Review
- Diagnostic Performance of Photon-Counting CT Angiography in Vascular Stenosis Assessment: A Systematic Review and Meta-Analysis.Diagnostics (Basel, Switzerland) · 2026Review
- Photon-Counting CT in Cardiovascular Imaging: Clinical Applications.Korean journal of radiology · 2026Review
- Comparison of image quality between photon-counting detector CT and energy-integrating detector coronary CT angiography in heart transplant patients.The international journal of cardiovascular imaging · 2026Article
- Cardiac imaging using photon counting CT - benefits, challenges and prospects.The international journal of cardiovascular imaging · 2026Review
- Assessing beam hardening artifacts in coronary stent imaging using different CT acquisition parameters on photon-counting detector computed tomography.The international journal of cardiovascular imaging · 2026Article
- Coronary CT Angiography for PCI Planning and Guidance: A Comprehensive Narrative Review.Medicina (Kaunas, Lithuania) · 2026Review
- Prospective comparison of ultra-high-resolution photon-counting detector CT coronary angiography versus conventional CT.The British journal of radiology · 2026Article
- Spectral ultrahigh-resolution photon-counting CT for coronary stent imaging: evaluation in a dynamic phantom.European radiology experimental · 2025Article
- Photon-Counting CT-Angiography to Assess Intracranial Stents and Flow Diverters in Comparison to Digital Subtraction Angiography.Clinical neuroradiology · 2025Article
Corrections and comments
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Authors and funding
14 authors at 2 institutions in 1 country.
Funding
Abstract
objectivesTo determine the diagnostic accuracy of ultra-high-resolution photon-counting detector CT angiography (UHR PCD-CTA) for evaluating coronary stent patency compared to invasive coronary angiography (ICA).
methodsConsecutive, clinically referred patients with prior coronary stent implantation were prospectively enrolled between August 2022 and March 2023 and underwent UHR PCD-CTA (collimation, 120 × 0.2 mm). Two radiologists independently analyzed image quality of the in-stent lumen using a 5-point Likert scale, ranging from 1 ("excellent") to 5 ("non-diagnostic"), and assessed all coronary stents for the presence of in-stent stenosis (≥ 50% lumen narrowing). The diagnostic accuracy of UHR PCD-CTA was determined, with ICA serving as the standard of reference.
resultsA total of 44 coronary stents in 18 participants (mean age, 83 years ± 6 [standard deviation]; 12 women) were included in the analysis. In 3/44 stents, both readers described image quality as non-diagnostic, whereas reader 2 noted a fourth stent to have non-diagnostic image quality. In comparison to ICA, UHR PCD-CTA demonstrated a sensitivity, specificity, and accuracy of 100% (95% CI [confidence interval] 47.8, 100), 92.3% (95% CI 79.1, 98.4), and 93.2% (95% CI 81.3, 98.6) for reader 1 and 100% (95% CI 47.8, 100), 87.2% (95% CI 72.6, 95.7), and 88.6% (95% CI 75.4, 96.2) for reader 2, respectively. Both readers observed a 100% negative predictive value (36/36 stents and 34/34 stents). Stent patency inter-reader agreement was 90.1%, corresponding to a substantial Cohen's kappa value of 0.72.
conclusionsUHR PCD-CTA enables non-invasive assessment of coronary stent patency with high image quality and diagnostic accuracy. CLINICAL RELEVANCE STATEMENT: Ultra-high-resolution photon-counting detector CT angiography represents a reliable and non-invasive method for assessing coronary stent patency. Its high negative predictive value makes it a promising alternative over invasive coronary angiography for the rule-out of in-stent stenosis. KEY POINTS: • CT-based evaluation of coronary stent patency is limited by stent-induced artifacts and spatial resolution. • Ultra-high-resolution photon-counting detector CT accurately evaluates coronary stent patency compared to invasive coronary angiography. • Photon-counting detector CT represents a promising method for the non-invasive rule-out of in-stent stenosis.
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