Radiation protection value to the operator from augmented reality smart glasses in interventional fluoroscopy procedures using phantoms

Dorey, S ORCID: https://orcid.org/0000-0002-6506-0827, Gray, L, Tootell, AK ORCID: https://orcid.org/0000-0002-8567-8659, Higgins, R, Al-Islam, S, Baxter, H, Dixon, P and Hogg, P ORCID: https://orcid.org/0000-0002-6506-0827 2019, 'Radiation protection value to the operator from augmented reality smart glasses in interventional fluoroscopy procedures using phantoms' , Radiography .

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Abstract

Introduction: Smart glasses can be adapted to display radiographic images to allow clinician’s gaze not to be directionally fixed or predetermined by computer monitor location. This study presents an analysis of eye lens dose during interventional fluoroscopy guided procedures, comparing fixed monitor positions against the use of smart glasses.
Methods: Using a head phantom (simulating the clinician), thermoluminescent dosimeters and lead shielded glasses, the dose to the eye was measured for different head ‘rotations and tilts’ for: gaze directed towards the main scattering source (patient / primary beam) to represent potential gaze direction if smart glasses are used; gaze directed to a range of potential computer monitor positions. An anthropomorphic pelvis phantom was utilised to simulate the patient. Accumulated dose rates (µGy.sˉ¹) from five 10-second exposures at 75 kV 25.2 mAs were recorded.
Results: An average DAP reading of 758.84 cGy.cm2 was measured during each 10 second exposure. Whilst wearing lead shielded glasses a 6.10 – fold reduction in dose rate to the lens is possible (p<0.05). Influence of the direction of gaze by the clinician demonstrated a wide range of dose rate reduction from 3.13% (p=0.16) to 143.69% (p<0.05) when the clinician’s gaze was towards the main scattering source. Increased dose rate to the clinician’s eyes was received despite wearing lead shielded glasses, as the angle of gaze moved 45º and 90º from 0º.
Conclusion: If the clinician’s gaze is directed towards the main scattering source a potential exists for reducing eye lens dose compared with fixed location computer monitors. Introduction of lead lined smart glasses into interventional radiology may lead to improvements in patient care, reducing the need for the clinician to look away from the patient to observe a radiographic image.

Item Type: Article
Schools: Schools > School of Health and Society > Centre for Health Sciences Research
Journal or Publication Title: Radiography
Publisher: Elsevier
ISSN: 1078-8174
Related URLs:
Depositing User: P Hogg
Date Deposited: 15 Feb 2019 10:23
Last Modified: 15 Mar 2019 15:00
URI: http://usir.salford.ac.uk/id/eprint/50084

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