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

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dc.contributor.authorPenfold, S.
dc.contributor.authorMarcu, L.
dc.contributor.authorLawson, J.
dc.contributor.authorAsp, J.
dc.date.issued2012
dc.description.abstractTreatment 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 150 mSv yr1 for occupational exposures to the lens of the eye. With more long term follow-up data, this limit was revised in 2011 to 20 mSv yr1. 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 physician’s eye lens received for a conservative estimate of annual workload was never greater than 100% of the annual background dose.
dc.description.statementofresponsibilityS.N. Penfold, L. Marcu, J.M. Lawson and J. Asp
dc.identifier.citationJournal of Radiological Protection, 2012; 32(3):339-347
dc.identifier.doi10.1088/0952-4746/32/3/339
dc.identifier.issn0952-4746
dc.identifier.issn1361-6498
dc.identifier.orcidPenfold, S. [0000-0002-3422-9108]
dc.identifier.urihttp://hdl.handle.net/2440/73377
dc.language.isoen
dc.publisherInstitute of Physics Publishing Ltd
dc.rights© 2012 IOP Publishing Ltd
dc.source.urihttps://doi.org/10.1088/0952-4746/32/3/339
dc.subjectLens, Crystalline
dc.subjectHumans
dc.subjectProstatic Neoplasms
dc.subjectIodine Radioisotopes
dc.subjectRadioisotopes
dc.subjectFluoroscopy
dc.subjectBrachytherapy
dc.subjectCalibration
dc.subjectMonte Carlo Method
dc.subjectRadiation Dosage
dc.subjectRadiation Monitoring
dc.subjectPhantoms, Imaging
dc.subjectOccupational Exposure
dc.subjectPhysicians
dc.subjectMale
dc.titleEvaluation of physician eye lens doses during permanent seed implant brachytherapy for prostate cancer
dc.typeJournal article
pubs.publication-statusPublished

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