Unprotected operator eye lens doses in oncologic interventional radiology are clinically significant: Estimation from patient kerma-area-product data Journal Article

  

Authors:	Dauer, L. T.; Thornton, R. H.; Solomon, S.; St. Germain, J.
Article Title:	Unprotected operator eye lens doses in oncologic interventional radiology are clinically significant: Estimation from patient kerma-area-product data
Abstract:	Purpose To correlate operator lens dose to patient-delivered kerma-area-product (PKA) to evaluate the usefulness of PKA as a surrogate for operator eye dose if collar monitor readings are unavailable or deemed unreliable, and to evaluate if unprotected lens dose is clinically significant. Materials and Methods A retrospective review of peak skin doses for consecutive interventional radiology procedures performed during 2006 that had PKA estimates recorded was performed. Unshielded operator lens dose equivalents (LDE) were obtained from dosimetry monitors worn outside the collar shield of operating interventional radiologists. Operator LDE were correlated with patient PKA. Results Average LDE for 2006 was 35.7 mSv ± 32.7 (range 5.289.9 mSv). Patient-delivered PKA correlated directly with LDE, where 1 Gy cm2 to the patient resulted in an average of 4.2 μSv to the unprotected eyes of the primary operator (r2 = 0.7). Conclusions PKA may be useful as a surrogate measure of operator LDE if collar monitor readings are unavailable or deemed unreliable. For this study, the dose-effect threshold for cataract formation could be surpassed for some physicians within 11 years if lens dose-mitigating strategies are not routinely employed. © 2010 SIR.
Keywords:	adolescent; adult; child; controlled study; preschool child; school child; aged; aged, 80 and over; child, preschool; middle aged; retrospective studies; young adult; major clinical study; radiation dose; reproducibility of results; risk factors; retrospective study; risk assessment; dose-response relationship, radiation; radiation dosage; skin; radiologist; evaluation; dosimetry; radiation injuries; interventional radiology; radiography, interventional; medical oncology; new york city; cataract; dosimeter; film dosimetry; lens; lens, crystalline; occupational exposure; abbreviations; kerma-area-product; lde; lens dose equivalents; pka; eye protective device; operator; patient kerma area product
Journal Title:	Journal of Vascular and Interventional Radiology
Volume:	21
Issue:	12
ISSN:	1051-0443
Publisher:	Elsevier Science, Inc.
Date Published:	2010-12-01
Start Page:	1859
End Page:	1861
Language:	English
DOI:	10.1016/j.jvir.2010.08.006
PUBMED:	20970356
PROVIDER:	scopus
DOI/URL:	http://www.scopus.com/inward/record.url?eid=2-s2.0-78649523573&partnerID=40&md5=4453cde3faec127bb52e3a379a01d939
Notes:	--- - "Export Date: 20 April 2011" - "CODEN: JVIRE" - "Source: Scopus"

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