
Radiology AI faces a 14-month transatlantic approval gap
A peer-reviewed npj Digital Medicine study analyzed 239 AI-enabled radiology software devices with a European CE mark, United States Food and Drug Administration clearance, or both. Of the sample, 128 had only a CE mark, 95 received a CE mark before FDA clearance, and 16 received FDA clearance first. Among dual-authorized devices, the median wait for the second authorization was 17.5 months when the CE mark came first, compared with 3.5 months when FDA clearance came first. Radiograph-interpretation software was associated with a longer wait, while European Class IIa classification was associated with a shorter interval. The observational study identifies sequencing and association; it does not establish why every delay occurred or that one regulator's decision is superior. Its policy value is the asymmetry. Developers, hospitals, and regulators need clearer, comparable evidence requirements so validated safety information can travel across jurisdictions without converting coordination into weaker scrutiny.
