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.
Nagamoto et al. (Thu,) studied this question.