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CardioVascular and Interventional Radiology

Erschienen in:

01.08.2015 | Clinical Investigation

Occupational Radiation Exposure During Endovascular Aortic Repair

verfasst von: Anna M. Sailer, Geert Willem H. Schurink, Martine E. Bol, Michiel W. de Haan, Willem H. van Zwam, Joachim E. Wildberger, Cécile R. L. P. N. Jeukens

Erschienen in: CardioVascular and Interventional Radiology | Ausgabe 4/2015

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Abstract

Purpose

The aim of the study was to evaluate the radiation exposure to operating room personnel and to assess determinants for high personal doses during endovascular aortic repair.

Materials and Methods

Occupational radiation exposure was prospectively evaluated during 22 infra-renal aortic repair procedures (EVAR), 11 thoracic aortic repair procedures (TEVAR), and 11 fenestrated or branched aortic repair procedures (FEVAR). Real-time over-lead dosimeters attached to the left breast pocket measured personal doses for the first operators (FO) and second operators (SO), radiology technicians (RT), scrub nurses (SN), anesthesiologists (AN), and non-sterile nurses (NSN). Besides protective apron and thyroid collar, no additional radiation shielding was used. Procedural dose area product (DAP), iodinated contrast volume, fluoroscopy time, patient’s body weight, and C-arm angulation were documented.

Results

Average procedural FO dose was significantly higher during FEVAR (0.34 ± 0.28 mSv) compared to EVAR (0.11 ± 0.21 mSv) and TEVAR (0.06 ± 0.05 mSv; p = 0.003). Average personnel doses were 0.17 ± 0.21 mSv (FO), 0.042 ± 0.045 mSv (SO), 0.019 ± 0.042 mSv (RT), 0.017 ± 0.031 mSv (SN), 0.006 ± 0.007 mSv (AN), and 0.004 ± 0.009 mSv (NSN). SO and AN doses were strongly correlated with FO dose (p = 0.003 and p < 0.001). There was a significant correlation between FO dose and procedural DAP (R = 0.69, p < 0.001), iodinated contrast volume (R = 0.67, p < 0.001) and left-anterior C-arm projections >60° (p = 0.02), and a weak correlation with fluoroscopy time (R = 0.40, p = 0.049).

Conclusion

Average FO dose was a factor four higher than SO dose. Predictors for high personal doses are procedural DAP, iodinated contrast volume, and left-anterior C-arm projections greater than 60°.

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Titel: Occupational Radiation Exposure During Endovascular Aortic Repair
verfasst von: Anna M. Sailer
Geert Willem H. Schurink
Martine E. Bol
Michiel W. de Haan
Willem H. van Zwam
Joachim E. Wildberger
Cécile R. L. P. N. Jeukens
Publikationsdatum: 01.08.2015
Verlag: Springer US
Erschienen in: CardioVascular and Interventional Radiology / Ausgabe 4/2015
Print ISSN: 0174-1551
Elektronische ISSN: 1432-086X
DOI: https://doi.org/10.1007/s00270-014-1025-8

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Occupational Radiation Exposure During Endovascular Aortic Repair