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Hospital-level cost-effectiveness results. Guideline-based strategy = DUS + CTA (confirmatory), Hospital 1 currently uses CTA-only strategy, Hospital 2 currently uses DUS + CTA (confirmatory) strategy. DUS duplex ultrasonography, CTA computed tomography angiography, CE-MRA contrast-enhanced-magnetic resonance angiography, QALY quality-adjusted life year, ICER incremental cost-effectiveness ratio
