ArticleKorean journal of radiology2024
Diagnostic Efficacy and Safety of Low-Contrast-Dose Dual-Energy CT in Patients With Renal Impairment Undergoing Transcatheter Aortic Valve Replacement.
Article in Korean journal of radiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
3 citing papers in PubMed.
- Feasibility of ultra-low flow rate coronary CT angiography using photon-counting detector CT: a prospective randomized trial.European radiology experimental · 2026Trial
- Photon counting detector CT contrast agent-reduced transcatheter aortic valve reconstruction planning: a comparative study.European radiology · 2026Article
- Novel High-Atomic-Number Element and Nanoparticle-Based CT Contrast Agents: Advanced Design Strategies and Clinical Translational Barriers.International journal of nanomedicine · 2026Review
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
objectiveThis study aimed to evaluate the diagnostic efficacy and safety of low-contrast-dose, dual-source dual-energy CT before transcatheter aortic valve replacement (TAVR) in patients with compromised renal function. MATERIALS AND
methodsA total of 54 consecutive patients (female:male, 26:38; 81.9 ± 7.3 years) with reduced renal function underwent pre-TAVR dual-energy CT with a 30-mL contrast agent between June 2022 and March 2023. Monochromatic (40- and 50-keV) and conventional (120-kVp) images were reconstructed and analyzed. The subjective quality score, vascular attenuation, contrast-to-noise ratio (CNR), and signal-to-noise ratio (SNR) were compared among the imaging techniques using the Friedman test and post-hoc analysis. Interobserver reliability for aortic annular measurement was assessed using the intraclass correlation coefficient (ICC) and Bland-Altman analysis. The procedural outcomes and incidence of post-contrast acute kidney injury (AKI) were assessed.
resultsMonochromatic images achieved diagnostic quality in all patients. The 50-keV images achieved superior vascular attenuation and CNR (
conclusionLow-contrast-dose imaging with 50-keV reconstruction enables precise pre-TAVR evaluation with improved image quality and minimal risk of post-contrast AKI. This approach may be an effective and safe option for pre-TAVR evaluation in patients with compromised renal function.
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Registered trials
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