{"id":8734,"date":"2023-09-02T12:15:06","date_gmt":"2023-09-02T03:15:06","guid":{"rendered":"https:\/\/papricalab.com\/publication8\/"},"modified":"2023-10-07T11:28:16","modified_gmt":"2023-10-07T02:28:16","slug":"publication8","status":"publish","type":"page","link":"https:\/\/papricalab.com\/en\/publication8\/","title":{"rendered":"Publication8"},"content":{"rendered":"\t\t
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\n\t\t\t\t\t\n\tBack to List<\/span>\n\t\t\n\t\t\n\t\t\t<\/path><\/svg>\t\t\t\t\t<\/span>\n\t<\/span>\n<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Publication 8:<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Gold coated contact lens-type ocular in vivo dosimeter (CLOD) for monitoring of low dose in computed tomography: A Monte Carlo study<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Seongmoon Jung, Jung-in Kim, Jong Min Park, Hong-Gyun Wu, Chang Heon Choi<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Physica Media<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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2021.11<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\thttps:\/\/doi.org\/10.1016\/j.ejmp.2021.10.016<\/a><\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Abstract<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Purpose<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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This study reports a sensitivity enhancement of gold-coated contact lens-type ocular in vivo dosimeters (CLODs) for low-dose measurements in computed tomography (CT).<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Methods<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Monte Carlo (MC) simulations were conducted to evaluate the dose enhancement from the gold (Au) layers on the CLODs. The human eye and CLODs were modeled, and the X-ray tube voltages were defined as 80, 120, and 140 kVp. The thickness of the Au layer attached to a CLOD ranged from 100 nm to 10 \u03bcm. The thickness of the active layer ranged from 20 to 140 \u03bcm. The dose ratio between the active layer of the Au-coated CLOD and a CLOD without a layer, i.e., the dose enhancement factor (DEF), was calculated.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Results<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The DEFs of the first 20-\u03bcm thick active layer of the 5-\u03bcm thick Au-coated CLOD were 18.4, 19.7, 20.2 at 80, 120, and 140 kVp, respectively. The DEFs decreased as the thickness of the active layer increased. The DEFs of 100-nm to 5-\u03bcm thick Au layers increased from 1.7 to 5.4 for 120-kVp X-ray tube voltage when the thickness of the active layer was 140 \u03bcm.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Conclusions<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The MC results presented a higher sensitivity of Au-coated CLODs (~20-times higher than that of CLODs without a gold layer). Au-coated CLODs can be applied to an evaluation of very low doses (a few cGy) delivered to patients during CT imaging.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Back to List Publication 8: Gold coated contact lens-type ocular in vivo dosimeter (CLOD) for monitoring of low dose in computed tomography: A Monte Carlo study AUTHORS Seongmoon Jung, Jung-in Kim, Jong Min Park, Hong-Gyun Wu, Chang Heon Choi PUBLISHED Physica Media DATE 2021.11 DOI https:\/\/doi.org\/10.1016\/j.ejmp.2021.10.016 Abstract Purpose This study reports a sensitivity enhancement of […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-8734","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/papricalab.com\/en\/wp-json\/wp\/v2\/pages\/8734","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/papricalab.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/papricalab.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/papricalab.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/papricalab.com\/en\/wp-json\/wp\/v2\/comments?post=8734"}],"version-history":[{"count":4,"href":"https:\/\/papricalab.com\/en\/wp-json\/wp\/v2\/pages\/8734\/revisions"}],"predecessor-version":[{"id":8837,"href":"https:\/\/papricalab.com\/en\/wp-json\/wp\/v2\/pages\/8734\/revisions\/8837"}],"wp:attachment":[{"href":"https:\/\/papricalab.com\/en\/wp-json\/wp\/v2\/media?parent=8734"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}