ICRP publication 135  suggests to derive the typical values (Table 1) where it is apparent that further optimization is being achieved locally, or where no national DRL values exist.
Table1. Typical values, methods of derivation, and areas of application.
Value in distribution
used to set DRL
Healthcare facility consisting of several x-ray rooms or a small number of facilities or single facility linked to a
Median value of the distribution, as there are insufficient...
Description of activity and work performed
Aim and Objectives
This work is a cross-section study result of the experience of a single Stroke Hub Centre (including 24/7/365 h neurology service, interventional neuroradiology and neurosurgery) which aims to identify which are parameters that can influence the complexity of stroke endovascular treatment in terms of exposure. In addition, it is proposed to derive the DRL (Typical values) according to ICRP 135, in the absence of DRL at national level.
Method and Material
Data from 145 stroke patient treated between January 1, 2017, and...
Conclusion and recommendations
Typical values derived in this study promote the patient dose optimization. The clinical variables related to the complexity of procedure that mainly affected the dosimetric data are thrombus location and use of stent retrievers, operator expertise and patient sex.
L. D'ercole; Pavia/IT - nothing to disclose M. Cavallari; Pavia/IT - nothing to disclose C. Klersy; Pavia/IT - nothing to disclose E. Lafe; Pavia/IT - nothing to disclose G. Sanfilippo; Pavia/IT - nothing to disclose A. Sgreccia; Pavia/IT - nothing to disclose F. Zappoli Thyrion; Pavia/IT - nothing to disclose
Vaño E, Miller DL, Martin CJ, Rehani MM, Kang K, Rosenstein M, et al. Diagnostic reference levels in medical imaging. ICRP Publication 135. Annals of ICRP 2017;46(1):1-144
IAEA, Establishing Guidance Levels in X Ray Guided Medical Interventional Procedures: A Pilot Study. 2009 Safety Report Series No. 59.
Samaniego E.A., Roa J. A, LimayeK.,Adams H.P, Mechanical Thrombectomy: Emerging Technologies and Techniques , Journal of Stroke and Cerebrovascular Diseases, Vol.27,No.10(October),2018:pp2555 _2571
Chi Zhang, Fang Pu, Shuyu Li, Sheng Xie, Yubo Fan, Deyu Li, Geometric classification of the...