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Correlation between scattered radiation dose and height of the staff's eyes at different positions in an angiography room

Ahmad Radzi, Halimatussa'Diah and Sohaimi, Norhanna and Md Ralib @ Md Raghib, Ahmad Razali (2021) Correlation between scattered radiation dose and height of the staff's eyes at different positions in an angiography room. Korean Journal of Radiology, KJR supplement. S116-S116. ISSN 1229-6929 E-ISSN 2005-8330

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Introduction / Purpose: Scattered radiations could reach the angiographic staff’s eyes during procedures and cause radiation induced cataract. The aim of this study was to correlate between scattered radiation doses and the heights of staff’s eyes at several positions in an angiography room. Methodology: An anthropomorphic Kyoto Kagaku PBU-31 phantom (Kyoto, Japan) which simulated a male patient’s torso was exposed using Siemen’s Artis Q (Erlangen, Germany) angiographic system. Technical factors were set for percutaneous transhepatic biliary drainage procedure in posteroanterior projection. Exposures were done in digital subtraction angiography acquisition for durations of 4s, 10s and 20s. For each duration, 96 nanodot optically stimulated luminescence (OSL) dosimeters (Landauer, Inc., Glenwood, USA) were used to record the scattered radiation dose. The nanodots were placed at 8 heights from the floor (135, 140, 145, 150, 155, 160, 165 and 170 cm) and on twelve paper tubes which simulated twelve different positions. The recorded radiation doses were read in mGy units and were normalised to the dose area product (mGym2) of each exposure duration. A non-parametric Spearman rank correlation test was used since the data were not normally distributed. Results: For the overall locations, scattered radiation dose and eye heights were found to be moderately negative correlated, rs (288) = -0.499, p-value = < 0.001. However, different strengths of correlation were found for the individual positions. Conclusion: This study found that stronger correlations were observed near the patient but weaker or no correlations were seen towards the patient’s feet.

Item Type: Article (other)
Uncontrolled Keywords: Scattered-radiation, Eye, Dosimetry
Subjects: Q Science > Q Science (General)
R Medicine > R Medicine (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Allied Health Sciences > Department of Diagnostic Imaging and Radiotherapy
Kulliyyah of Medicine > Department of Radiology
Depositing User: Halimatussa'diah Ahmad Radzi
Date Deposited: 06 Sep 2021 10:48
Last Modified: 06 Sep 2021 10:48
URI: http://irep.iium.edu.my/id/eprint/91881

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