ArticleFrontiers in cardiovascular medicine2026
Ultra-low 70-kV cardiac CT angiography in neonates: a comparative dose-optimized approach with preserved image quality.
Article in Frontiers in cardiovascular medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: To evaluate the feasibility of ultra-low tube voltage (70 kV) cardiac CT angiography (CTA) with weight-adapted iodine delivery in neonates and to compare image quality, coronary visibility, radiation exposure, and iodine delivery with those of a conventional 80-kV protocol. Methods: This retrospective study included 125 neonates with congenital heart disease who underwent prospectively ECG-triggered cardiac CTA using a 256-row CT scanner. Patients were divided into an 80-kV group reconstructed with 50% adaptive statistical iterative reconstruction-V (ASIR-V) ( Results: Overall interobserver agreement for subjective image quality assessment was excellent ( Conclusions: Ultra-low tube voltage (70 kV) cardiac CT with weight-adjusted iodine delivery is feasible for neonatal imaging and can substantially reduce radiation exposure while preserving coronary artery image quality and visibility. This approach may help achieve a more balanced trade-off among image quality, radiation dose, and contrast administration in neonatal cardiac CT examinations.
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