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Multicenter prospective study shows CO2-guided EVAR lacks excessive radiation, indicating safety in use.
CO₂-guided EVAR exhibits substantial radiation dose variability, driven by angiographic system generation, software, and synchronization protocols. Modern systems with optimized low-dose protocols and CO₂-DSA synchronization reduce radiation exposure to levels comparable to ICM-based EVAR.Clinical ImpactThis large multicenter prospective study establishes a reliable radiation dose benchmarks for CO2-guided endovascular aortic repair (EVAR), showing that modern angiographic systems with optimized low-dose protocols and synchronized CO₂-digital subtraction angiography achieve median dose-area product values comparable with conventional iodinated contrast media EVAR, thereby dispelling concerns about excessive radiation exposure with CO₂-guided EVAR.
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Chisci et al. (2026) studied this question.
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