Evaluation of physician eye lens doses during permanent seed implant brachytherapy for prostate cancer

S. N. Penfold, L. Marcu, J. M. Lawson, J. Asp

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Treatment of low grade prostate cancer with permanent implant of radioactive seeds has become one of the most common brachytherapy procedures in use today. The implant procedure is usually performed with fluoroscopy image guidance to ensure that the seeds are deployed in the planned locations. In this situation the physician performing the transperineal implant is required to be close to the fluoroscopy unit and dose to the eye lens may be of concern. In 1991 the International Commission on Radiological Protection (ICRP) provided a recommended dose limit of 150mSvyr 1 for occupational exposures to the lens of the eye. With more long term follow-up data, this limit was revised in 2011 to 20mSvyr 1. With this revised limit in mind, we have investigated the dose to the lens of the eye received by physicians during prostate brachytherapy seed implantation. By making an approximation of annual workload, we have related the dose received to the annual background dose. Through clinical and phantom measurements with thermoluminescent dosimeters, it was found that the excess dose to the physicians eye lens received for a conservative estimate of annual workload was never greater than 100% of the annual background dose.

LanguageEnglish
Pages339-347
Number of pages9
JournalJournal of Radiological Protection
Volume32
Issue number3
DOIs
Publication statusPublished - Sep 2012

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Waste Management and Disposal
  • Medicine(all)

Cite this

Penfold, S. N. ; Marcu, L. ; Lawson, J. M. ; Asp, J. / Evaluation of physician eye lens doses during permanent seed implant brachytherapy for prostate cancer. In: Journal of Radiological Protection. 2012 ; Vol. 32, No. 3. pp. 339-347.
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Evaluation of physician eye lens doses during permanent seed implant brachytherapy for prostate cancer. / Penfold, S. N.; Marcu, L.; Lawson, J. M.; Asp, J.

In: Journal of Radiological Protection, Vol. 32, No. 3, 09.2012, p. 339-347.

Research output: Contribution to journalArticle

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