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ORIGINAL ARTICLE
Year : 2014  |  Volume : 37  |  Issue : 2  |  Page : 101-105

Eye lens dose estimation during interventional radiology and its impact on the existing radiation protection and safety program: In the context with new International Commission on Radiological Protection guidelines


Department of Medical Physics, Tata Memorial Hospital, Mumbai, Maharashtra, India

Correspondence Address:
Suresh Chaudhari
Department of Medical Physics, Tata Memorial Hospital, Mumbai, Maharashtra 400 012
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-0464.147291

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Interventional radiology procedures are used for diagnosing certain medical conditions. The radiologists and medical professionals are exposed to ionizing radiation from X-rays of the equipments and also from scattered radiation during these procedures. The radiation exposure to the eye is more important to be assessed while performing such procedures. ICRP has revised the annual dose limit to the lens of the eye from 150 mSv to 20 mSv. In view of this revision, a study was carried out to evaluate the dose to the lens of the eye during interventional radiology. The paper gives the details of calibration of TLDs using a head phantom, predict annual equivalent dose and also highlight the dependence of dose on the position of TLD on the head. It is observed the predicted annual equivalent doses to the lens of eye are in the range of 25 mGy to 37 mGy. The selection of dosimeter placement may also result in an uncertainty of -14% to 20%.


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