P161 First evaluation of a new radiation protection equipment dedicated to interventional neuroradiology

<h3>Introduction</h3> Occupational exposure in interventional neuroradiology can be considered moderate compared to legal dose limits, however, the work environment should be optimized to reduce the exposure while maintaining good ergonomics and a low burden on the operator. Mobile radiation protection cabins have proven their efficiency for radiation protection in cardiology procedures while reducing the level of personal protective equipment needed. A new cabin, Novashell, by Lemerpax, has been developed specifically for interventional neuroradiology procedures. <h3>Aim of Study</h3> This study aims to measure the radiation protection efficiency of Novashell. <h3>Methods</h3> We conducted two occupational exposure studies, with our conventional collective radiation protection equipment, two ceiling-mounted lead acrylic shields (53 procedures), and with Novashell cabin (47 procedures). We measured the doses using thermoluminescent and operational dosimeters and pooled the results by roles. We also mapped the equivalent dose rate levels in the operative room using operational dosimeters on 13 points of interest, at 3 different heights. <h3>Results</h3> All workers’ exposure has been significantly reduced with Novashell. Notably the main operator thorax dose has decreased by 55%, their exposure over the lead apron with Novashell is inferior to their exposure under the lead apron in conventional setup (20.84 µSv/month <i>vs.</i> 24.51 µSv/month). The highest benefit in equivalent dose rate level at the main operator position have been measured at the eyes level (1.6m) with a 75% decrease. <h3>Conclusion</h3> We have demonstrated the effectiveness of the new Novashell cabin, which improves protection for the interventional neuroradiology team and addresses concerns about musculoskeletal disorders induced by personal protective equipment. <h3>Disclosure of Interest</h3> no.