The use of lead aprons in chest radiography

Autor: K.E. Goldstone, C.F. Njeh, J.P. Wade
Rok vydání: 1997
Předmět:
Zdroj: Radiography. 3:143-147
ISSN: 1078-8174
DOI: 10.1016/s1078-8174(97)90019-5
Popis: Purpose: There is a general necessity to minimize patients' radiation dose. This may be done in a variety of ways including the use of localized shielding. It has been accepted practice for patients undergoing chest X-ray examination to wear lead half-aprons. Measurements were made to establish the necessity of such shielding when modern X-ray equipment with good collimation is used. Methods: Thermoluminescent dosemeters and an ionization chamber were used to measure the entrance surface dose (ESD) at the centre of the X-ray beam and the exit dose. Dose at the locations of the ovaries were also measured. Results: There was no difference between surface doses at ovary level recorded with and without the lead half-apron in place. The worst recorded case of dose received by the ovaries was 2.1% of the ESD in the field of view. Conclusion: From the doses measured it was concluded that if the field of view is collimated to the waist then there is negligible radiation protection benefit from using a lead half-apron during chest X-ray examination.
Databáze: OpenAIRE
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