Evaluation of the effectiveness of radiation protection drapes (RADPAD^®) in reducing staff exposure during neurological interventional procedures: A phantom study.

Congress:

EuroSafe Imaging 2020

Poster Number:

ESI-07689

Type:

EuroSafe Imaging

Keywords:

Performed at one institution, Not applicable, Prospective, Dosimetric comparison, Aneurysms, Radiation safety, Embolisation, Dosimetry, Fluoroscopy, Radioprotection / Radiation dose, Radiation physics, Interventional vascular, Physics in Medical Imaging

Authors:

C. Renaud, S. Avramova-Cholakova

DOI:

10.26044/esi2020/ESI-07689

DOI-Link:

https://dx.doi.org/10.26044/esi2020/ESI-07689

Fig. 3: Geometry 2 represents phantoms positioning in the initial part of the procedure...

Table 1: Table 1. Experimental settings used to measure different levels of scattered...

Table 2: Summary of experimental results. For each scatter measurement the setting and...

Background/introduction

The Council Directive 2013/59/Euratom [1], which lays down the safety standards for the protection against exposure to Ionising Radiation, defined new occupational dose limits in 2013 which Member States had to implement from 6th February 2018. The main change concerns the dose to the lens of the eye which has been reduced to 20 mSv/yr or 100 mSv in any five consecutive years (‘the average annual dose over any five consecutive years shall not exceed 50 mSv’ [1]) following evidence that the lens is more...

Description of activity and work performed

The majority of the Cerebral Embolisation procedures carried out at our hospital are performed on a bi-plane Azurion Clarity IQ (Philips) system, also used for our phantom study. Three elliptic cylinder shaped polymethyl methacrylate (PMMA) phantoms of increasing size were used to simulate the patient body and standard 20 cm PMMA plates were positioned alongside to represent the hips and top of the thighs. The radiation protection drape used in this study was the RADPAD® Femoral Entry Angiography Shield, which is used during cerebral embolisation...

Conclusion and recommendations

The effectiveness of radiation protection drapes RADPAD® in reducing interventional neuroradiologists’ exposure to scattered radiation during Cerebral Embolisation procedures was assessed in this phantom study. The use of RADPAD® as sole element of radiation protection demonstrated a scatter air kerma rate reduction to staff of up to 13%, which is significant in conditions where the ceiling mounted shield is not convenient to use. As expected, the ceiling mounted shield provides the most protection to staff with an 88% scatter air kerma rate reduction compared to...

Personal/organisational information

C. Renaud; London/UK - nothing to disclose S. Avramova-Cholakova; London/UK - nothing to disclose

References

[1] European Council Directive 2013/59/Euratom on basic safety standards for protection against the dangers arising from exposure to ionising radiation and repealing Directives 89/618/Euratom, 90/641/Euratom, 96/29/Euratom, 97/43/Euratom and 2003/122/Euratom. OJ of the EU. L13; 57: 1–73 (2014). [2] ICRP, 2012. ICRP Statement on Tissue Reactions / Early and Late Effects of Radiation in Normal Tissues and Organs – Threshold Doses for Tissue Reactions in a Radiation Protection Context. ICRP Publication 118. Ann. ICRP 41(1/2). [3] Vano E, Sanchez RM, Fernandez JM. Estimation of staff lens...