Abstract
Clinicians should reduce unnecessary radiation exposure when there is no gaze at the fluoroscopy monitor. We have developed a new eye-tracking fluoroscopy system that informs the radiologic technologist when the operators' line of sight is directed toward the monitor. The aim of this study was to evaluate the effectiveness of the system. This was a retrospective, single-center study comprising 15 endoscopic procedures. Median X-ray exposure was 277.4 seconds in the use group and 366.5 seconds in the non-use group (p=0.61). The number of unnecessary radiation exposure was 0 (interquartile range: 0-1.5) vs. 6 (4-10), p=0. 013. Unnecessary radiation exposure rate was significantly lower in the use group than in the non-use group (2.3% vs. 33.3%, p=0.017). In the non-use group, unnecessary exposure rate increased due to non-detection of line-of-sight to the fluoroscopy monitor intervening between detections during X-ray exposure. Appropriate X-ray inactivation using the eye-tracking fluoroscopy system led to increase the number of X-ray activation and to reduce the unnecessary radiation exposure time.
