Evaluation of a real-time dose display system as a behavioural intervention to improve radiation protection in...

This pilot study evaluated the educational and behavioural effects of a real-time radiation dose visualization system during upper gastrointestinal fluoroscopy. Fifty-one procedures (pre-intervention, n = 26; post-intervention, n = 25) by seven radiologists were analysed. Occupational dose Hp(10) showed no detectable difference after implementation [median 27 vs 26 μSv; median difference -2.0 μSv, 95% confidence intervals (CI) -11.0 to +7.0; P = .637]. The normalized index Hp(10)/cumulative air kerma (C-AK) was similarly unchanged (median 446.5 vs 450.9 μSv/Gy; difference +22.9 μSv/Gy, 95% CI -108.8 to +147.9; P = .785). Procedural metrics showed no significant variation (C-AK: P = .385; fluoroscopy time: P = .487; images: P = .084). Post-intervention questionnaires indicated increased awareness of radiation exposure and reinforcement of protective behaviour. The large-screen interface provided immediate, intuitive feedback and functioned as a behavioural safety tool aligned with experiential learning principles. Real-time visual feedback may enhance radiation protection education by improving awareness and promoting reflective behavioural learning, even when immediate reductions in measured dose are not observed.