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European Radiology
Published in: European Radiology 10/2017

01-10-2017 | Interventional

Patient dose in interventional radiology: a multicentre study of the most frequent procedures in France

Authors: Cécile Etard, Emeline Bigand, Cécile Salvat, Vincent Vidal, Jean Paul Beregi, Amaury Hornbeck, Joël Greffier

Published in: European Radiology | Issue 10/2017

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Abstract

Objectives

A national retrospective survey on patient doses was performed by the French Society of Medical physicists to assess reference levels (RLs) in interventional radiology as required by the European Directive 2013/59/Euratom.

Methods

Fifteen interventional procedures in neuroradiology, vascular radiology and osteoarticular procedures were analysed. Kerma area product (KAP), fluoroscopy time (FT), reference air kerma and number of images were recorded for 10 to 30 patients per procedure. RLs were calculated as the 3rd quartiles of the distributions.

Results

Results on 4600 procedures from 36 departments confirmed the large variability in patient dose for the same procedure. RLs were proposed for the four dosimetric estimators and the 15 procedures. RLs in terms of KAP and FT were 90 Gm.cm2 and 11 mins for cerebral angiography, 35 Gy.cm2 and 16 mins for biliary drainage, 75 Gy.cm2 and 6 mins for lower limbs arteriography and 70 Gy.cm2 and 11 mins for vertebroplasty. For these four procedures, RLs were defined according to the complexity of the procedure. For all the procedures, the results were lower than most of those already published.

Conclusions

This study reports RLs in interventional radiology based on a national survey. Continual evolution of practices and technologies requires regular updates of RLs.

Key Points

• Delivered dose in interventional radiology depends on procedure, practice and patient.
• National RLs are proposed for 15 interventional procedures.
• Reference levels (RLs) are useful to benchmark practices and optimize protocols.
• RLs are proposed for kerma area product, air kerma, fluoroscopy time and number of images.
• RLs should be adapted to the procedure complexity and updated regularly.
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Metadata
Title
Patient dose in interventional radiology: a multicentre study of the most frequent procedures in France
Authors
Cécile Etard
Emeline Bigand
Cécile Salvat
Vincent Vidal
Jean Paul Beregi
Amaury Hornbeck
Joël Greffier
Publication date
01-10-2017
Publisher
Springer Berlin Heidelberg
Published in
European Radiology / Issue 10/2017
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI
https://doi.org/10.1007/s00330-017-4780-5

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