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http://dx.doi.org/10.6109/jkiice.2019.23.7.779

Evaluation of entrance surface dose and image quality according to the installation of Bismuth shield in the case of endovascular treatment of cerebral aneurysm  

Kim, Jae-Seok (Department of Biomedical Engineering, Ajou University)
Kim, Young-Kil (Department of Biomedical Engineering, Ajou University)
Choi, Jae-Ho (Department of Radiological Technology, Ansan University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.23, no.7, 2019 , pp. 779-785 More about this Journal
Abstract
By applying an ergonomically developed Bismuth shield to the endovascular treatment of cerebral aneurysm the radiation dose of the scalp and lens from the medical radiation exposure was reduced. The enrtance surface dose was analyzed by measuring the occipital parts, bilateral temporal parts, bilateral quadriceps, and nasal tip of the developed bismuth shield using a photostimulable fluorescence dosimeter before (Group A) before use (Group B). Signal to noise ratio (SNR) and contrast to noise ratio (CNR) analysis were used to evaluate the image quality when Bismuth shielding was used. The mean entrance surface dose of A group and B group was 26.92% lower than that of A group. The analysis of CNR and SNR was the same for both Roadmap and DSA. The use of Bismuth shielding is an alternative that can reduce the radiation impairment due to temporary hair loss and other stochastic effects that may occur after cerebrovascular intervention.
Keywords
Cerebrovascular intervention; Bismuth shield; Radiation exposure; Radiation protection;
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Times Cited By KSCI : 1  (Citation Analysis)
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