Patient dose management in fluoroscopy : the use of DRL : P123

Details

Serval ID
serval:BIB_5D2C9AE52596
Type
Inproceedings: an article in a conference proceedings.
Publication sub-type
Poster: Summary – with images – on one page of the results of a researche project. The summaries of the poster must be entered in "Abstract" and not "Poster".
Collection
Publications
Title
Patient dose management in fluoroscopy : the use of DRL : P123
Title of the conference
SGR-SSR 2009, 96th Annual Swiss Congress of Radiology
Author(s)
Samara E., Bize P., Binaghi S., Aroua A., Trueb L., Schnyder P., Bochud F., Verdun F.
Address
Geneva, Switzerland, June 4-6, 2009
ISBN
1424-4977
Publication state
Published
Issued date
2009
Volume
9
Series
Swiss Medical Forum = Forum Médical Suisse
Pages
5S-6S
Language
english
Abstract
Purpose: To set local dose reference levels (DRL) that allow radiologists to control stochastic and deterministic effects. Methods and materials: Dose indicators for cerebral angiographies and hepatic embolizations were collected during 4 months and analyzed in our hospital. The data were compared when an image amplifier was used instead of a flat panel detector. The Mann and Whitney test was used. Results: For the 40 cerebral angiographies performed the DRL for DAP, fluoroscopy time and number of images were respectively: 166 Gy.cm2, 19 min, 600. The maximum DAP was 490 Gy.cm2 (fluoroscopy time: 84 min). No significant difference for fluoroscopy time and DAP for image amplifier and flat panel detector (p = 0.88) was observed. The number of images was larger for flat panel detector (p = 0.004). The values obtained were slightly over the present proposed DRL: 150 Gy.cm2, 15 min, 400. Concerning the 13 hepatic embolizations the DRL for DAP fluoroscopy time and number of images were: 315 Gy.cm2, 25 min, 370. The maximum DAP delivered was 845 Gy.cm2 (fluoroscopy time of 48 min). No significant difference between image amplifier and flat panel detector was observed (p = 0.005). The values obtained were also slightly over the present proposed DRL: 300 Gy.cm2, 20 min, 200. Conclusion: These results show that the introduction of flat panel detector did not lead to an increase in patient dose. A DRL concerning the cumulative dose (that allow to control the deterministic effect) should be introduced to allow radiologists to have full control on the risks associated with ionizing radiations. Results of this on going study will be presented.
Create date
18/08/2009 11:51
Last modification date
20/08/2019 15:15
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