2018
DOI: 10.1259/dmfr.20170428
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Evaluation of the radiation dose in the thyroid gland using different protective collars in panoramic imaging

Abstract: It can be concluded that the effective shielding area is an important parameter in thyroid gland dose reduction. Lead frontal collars with large effective shielding areas (>~300 cm but not necessarily very large) are appropriate for an optimized thyroid gland dose reduction particularly for the critical patients in dental panoramic imaging. Regardless of the shape and thickness, using the Pb-equivalent shields is not justifiable in dental panoramic imaging.

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Cited by 14 publications
(8 citation statements)
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“…Radiasi hambur berenergi lebih rendah dibandingkan radiasi primer, namun radiasi hambur dapat mencapai organ yang tidak terpapar radiasi primer serta dapat mengganggu proses pembentukan citra radiograf. 12,18 Dosis absorpsi radiasi primer dan radiasi hambur serta sifat tiroid yang sangat radiosensitif berkontribusi besar terhadap dosis efektif tiroid sekaligus dosis efektif total sehingga terpaparnya organ tiroid selama pemeriksaan radiografi berisiko menimbulkan efek biologis pada tiroid. 13 Risiko tersebut lebih tinggi pada anak-anak karena organ tiroid mereka sangat radiosensitif dan lebih mudah terpapar radiasi pengion sehingga perlu dilakukan upaya untuk melindungi mereka dari paparan radiasi.…”
Section: Studi Pustakaunclassified
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“…Radiasi hambur berenergi lebih rendah dibandingkan radiasi primer, namun radiasi hambur dapat mencapai organ yang tidak terpapar radiasi primer serta dapat mengganggu proses pembentukan citra radiograf. 12,18 Dosis absorpsi radiasi primer dan radiasi hambur serta sifat tiroid yang sangat radiosensitif berkontribusi besar terhadap dosis efektif tiroid sekaligus dosis efektif total sehingga terpaparnya organ tiroid selama pemeriksaan radiografi berisiko menimbulkan efek biologis pada tiroid. 13 Risiko tersebut lebih tinggi pada anak-anak karena organ tiroid mereka sangat radiosensitif dan lebih mudah terpapar radiasi pengion sehingga perlu dilakukan upaya untuk melindungi mereka dari paparan radiasi.…”
Section: Studi Pustakaunclassified
“…Selain timbal, material lain yang digunakan sebagai pelindung tiroid adalah komposit dari beberapa jenis logam selain timbal, antara lain aluminium, bismut dan timah, yang dikenal sebagai material Pb-equivalent. 12,22 Pelindung tiroid berbahan Pb-equivalent memiliki kemampuan hampir sama dengan pelindung tiroid berbahan timbal dalam mereduksi radiasi pada organ tiroid sehingga dapat menjadi alternatif untuk melindungi pasien dari paparan radiasi. Pelindung tiroid dengan material pelindung radiasi yang diletakkan pada bagian anterior dan lateral leher (Gambar 1) sudah cukup untuk mereduksi dosis radiasi tanpa perlu melindungi bagian posterior leher.…”
Section: Studi Pustakaunclassified
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“…(77)(78)(79) Recommendations by the American Dental Association, American Thyroid Association, and the European Commission stress the need to shield the thyroid gland during dental x-ray examination. (67,(80)(81)(82) The notion that low-dose radiation exposure through dental radiography, which is the most common medical radiation exposure in the general population, is completely without risk needs to be investigated further, as although the individual risk, particularly with modern equipment is likely to be very low, the proportion of the population exposed is high. Prospective studies, based on dental x-rays records and patient follow-up, are needed to test the hypothesis further and clarify the plausible cancer risk associated with dental radiography.…”
Section: Studies Of Us Radiologic Technologists Have Shown That Cumulmentioning
confidence: 99%
“…11 The thyroid dosimetry could also be evaluated with AD simulated in treatment planning system (TPS). 2,12,13 Nevertheless, uncertainties related to beam modeling and intrafraction management might lead to inaccuracies in dose delivery, making the dose assessment inaccurate. To our best knowledge, the relationship between the measured ESD and simulated AD has not been identified.…”
Section: Introductionmentioning
confidence: 99%