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Pediatric Cardiology

, Volume 30, Issue 4, pp 409–413 | Cite as

Staff Radiation Doses in Interventional Cardiology: Correlation With Patient Exposure

  • Eliseo VanoEmail author
  • Carlos Ubeda
  • Fernando Leyton
  • Patricia Miranda
  • Luciano Gonzalez
Original Article

Abstract

In pediatric interventional cardiology, cardiologists need to stay closer to the patient than during adult catheterization, and the use of biplane systems increases the scatter radiation. Occupational radiation risk is rather high, and estimation of lens doses becomes necessary. Deriving factors for assessing these doses from the patient doses displayed in catheterization laboratories can help in preserving staff radiation safety. A biplane X-ray system and polymethylmethacrylate plates of 4 to 20 cm to simulate pediatric patients have been used. Patient entrance dose rates, dose-area product, and doses to the eyes of the cardiologists for the typical operation modes have been measured. Correlations between patient and staff doses have been obtained. Scatter dose rates increase by a factor of 92 from low fluoroscopy to cine acquisition when phantom thickness increases from 4 to 20 cm. Scatter doses increase linearly with dose-area product for all the thicknesses. Administration of 1 Gy·cm2 to the patient involves 7 μSv to the eyes of the cardiologist (without extra protection). In conclusion, the experimental correlation factors found between phantom and scatter doses allow a fairly good estimation of staff doses from the dosimetric patient data.

Keywords

Interventional cardiology Radiation risk Staff doses 

Notes

Acknowledgments

The current work has been carried out as part of the Strengthening Radiological Protection of Patients and in Medical Exposures program (TSA3), RLA/9/057 of the International Atomic Energy Agency. Dr E. Vano acknowledges the support of the Spanish Department of Education and Science (grant FIS2006-08186). The authors also acknowledge Dr. P. Doggenweiler and Dr. M. E. Salinas for her helpful suggestions in the final revision of the manuscript.

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Eliseo Vano
    • 1
    Email author
  • Carlos Ubeda
    • 2
  • Fernando Leyton
    • 3
  • Patricia Miranda
    • 4
  • Luciano Gonzalez
    • 5
  1. 1.Radiology DepartmentComplutense University and San Carlos HospitalMadridSpain
  2. 2.Clinical Sciences Department, Faculty of the Science of Health Tarapaca UniversityAricaChile
  3. 3.Public Health Institute of ChileSantiagoChile
  4. 4.Hemodynamic Lab, Cardiovascular ServiceLuis Calvo Mackenna Children’s HospitalSantiagoChile
  5. 5.Radiology DepartmentComplutense UniversityMadridSpain

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