title: Influence of dosemeter position for the assessment of eye lens dose during interventional cardiology.
abstract: The equivalent dose limit for the eye lens for occupational exposure recommended by the ICRP has been reduced to 20 mSv y(-1) averaged over defined periods of 5 y, with no single year exceeding 50 mSv. The compliance with this new requirement could not be easy in some workplace such as interventional radiology and cardiology. The aim of this study is to evaluate different possible approaches in order to have a good estimate of the eye lens dose during interventional procedures. Measurements were performed with an X-ray system Philips Allura FD-10, using a PMMA phantom to simulate the patient scattered radiation and a Rando phantom to simulate the cardiologist. Thermoluminescence (TL) whole-body and TL eye lens dosemeters together with Philips DoseAware active dosemeters were located on different positions of the Rando phantom to estimate the eye lens dose in typical cardiology procedures. The results show that, for the studied conditions, any of the analysed dosemeter positions are suitable for eye lens dose assessment. However, the centre of the thyroid collar and the left ear position provide a better estimate. Furthermore, in practice, improper use of the ceiling-suspended screen can produce partial protection of some parts of the body, and thus large differences between the measured doses and the actual exposure of the eye could arise if the dosemeter is not situated close to the eye.
authors.affiliation: Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya (UPC), Barcelona 08028, Spain.
authors.forename: Sara
authors.initials: S
authors.lastname: Principi
authors.affiliation: Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya (UPC), Barcelona 08028, Spain merce.ginjaume@upc.edu.
authors.forename: Mercè
authors.initials: M
authors.lastname: Ginjaume
authors.affiliation: Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya (UPC), Barcelona 08028, Spain.
authors.forename: Maria Amor
authors.initials: MA
authors.lastname: Duch
authors.affiliation: Medical Physics, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos, Madrid 28040, Spain.
authors.forename: Roberto M
authors.initials: RM
authors.lastname: Sánchez
authors.affiliation: Medical Physics, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos, Madrid 28040, Spain Radiology Department, Medicine Faculty, Universidad Complutense de Madrid, Madrid 28014, Spain.
authors.forename: Jose M
authors.initials: JM
authors.lastname: Fernández
authors.affiliation: Medical Physics, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos, Madrid 28040, Spain Radiology Department, Medicine Faculty, Universidad Complutense de Madrid, Madrid 28014, Spain.
authors.forename: Eliseo
authors.initials: E
authors.lastname: Vano
mesh_terms: D006328:Cardiac Catheterization / Q000009:adverse effects / Q000379:methods*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D007908:Lens, Crystalline / Q000293:injuries / Q000528:radiation effects*; D011829:Radiation Dosage; D011835:Radiation Protection / Q000295:instrumentation / Q000379:methods*; D015641:Radiography, Interventional / Q000009:adverse effects / Q000379:methods*; D011874:Radiometry / Q000295:instrumentation / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity