Analysis of thyroid absorbed dose in cervical CT scan with the use of bismuth shielding
The Computed Tomography (CT) has become an important tool to diagnose cancer and to obtain additional information for different clinical questions. Today, it is a very fast, painless and noninvasive test that can be performed high quality images. However, CT scan usually requires a higher radiation...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)
2019-02-01
|
| Series: | Brazilian Journal of Radiation Sciences |
| Subjects: | |
| Online Access: | https://bjrs.org.br/revista/index.php/REVISTA/article/view/614 |
| _version_ | 1798027507360858112 |
|---|---|
| author | Fernanda Stephanie Santos Alvaro Mauricio Ladino Gomez Clarysson Alberto Melo da Silva Priscila do Carmo Santana Arnaldo Prata Mourao |
| author_facet | Fernanda Stephanie Santos Alvaro Mauricio Ladino Gomez Clarysson Alberto Melo da Silva Priscila do Carmo Santana Arnaldo Prata Mourao |
| author_sort | Fernanda Stephanie Santos |
| collection | DOAJ |
| description |
The Computed Tomography (CT) has become an important tool to diagnose cancer and to obtain additional information for different clinical questions. Today, it is a very fast, painless and noninvasive test that can be performed high quality images. However, CT scan usually requires a higher radiation exposure dose than a conventional radiography examination. The aim of this study is to determine the dose variation deposited in thyroid and in nearby radiosensitive organs, such as: lenses, pharynx, hypophysis, salivary gland and spinal cord with and without the use of bismuth shielded. A cervical CT scan was performed on anthropomorphic male phantom model Alderson Rando, using a GE scanner, Discovery model with 64 channels. Dose measurements have been performed by using radiochromic film strips to register the individual doses in the organs of interest. The results show us that the thyroid received the highest dose, 24.70 mGy, in the phantom, according to the incidence of the primary X-ray beam.
|
| first_indexed | 2024-04-11T18:52:45Z |
| format | Article |
| id | doaj.art-1f5f333173774614ae2b5aaf09172d2b |
| institution | Directory Open Access Journal |
| issn | 2319-0612 |
| language | English |
| last_indexed | 2024-04-11T18:52:45Z |
| publishDate | 2019-02-01 |
| publisher | Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR) |
| record_format | Article |
| series | Brazilian Journal of Radiation Sciences |
| spelling | doaj.art-1f5f333173774614ae2b5aaf09172d2b2022-12-22T04:08:17ZengBrazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)Brazilian Journal of Radiation Sciences2319-06122019-02-0172A10.15392/bjrs.v7i2A.614Analysis of thyroid absorbed dose in cervical CT scan with the use of bismuth shieldingFernanda Stephanie Santos0Alvaro Mauricio Ladino Gomez1Clarysson Alberto Melo da Silva2Priscila do Carmo SantanaArnaldo Prata MouraoFederal University of Minas GeraisNuclear Engineer Department at UFMGNuclear Engineer Department at UFMG The Computed Tomography (CT) has become an important tool to diagnose cancer and to obtain additional information for different clinical questions. Today, it is a very fast, painless and noninvasive test that can be performed high quality images. However, CT scan usually requires a higher radiation exposure dose than a conventional radiography examination. The aim of this study is to determine the dose variation deposited in thyroid and in nearby radiosensitive organs, such as: lenses, pharynx, hypophysis, salivary gland and spinal cord with and without the use of bismuth shielded. A cervical CT scan was performed on anthropomorphic male phantom model Alderson Rando, using a GE scanner, Discovery model with 64 channels. Dose measurements have been performed by using radiochromic film strips to register the individual doses in the organs of interest. The results show us that the thyroid received the highest dose, 24.70 mGy, in the phantom, according to the incidence of the primary X-ray beam. https://bjrs.org.br/revista/index.php/REVISTA/article/view/614Computed TomographyDosimetryBismuth shielding. |
| spellingShingle | Fernanda Stephanie Santos Alvaro Mauricio Ladino Gomez Clarysson Alberto Melo da Silva Priscila do Carmo Santana Arnaldo Prata Mourao Analysis of thyroid absorbed dose in cervical CT scan with the use of bismuth shielding Brazilian Journal of Radiation Sciences Computed Tomography Dosimetry Bismuth shielding. |
| title | Analysis of thyroid absorbed dose in cervical CT scan with the use of bismuth shielding |
| title_full | Analysis of thyroid absorbed dose in cervical CT scan with the use of bismuth shielding |
| title_fullStr | Analysis of thyroid absorbed dose in cervical CT scan with the use of bismuth shielding |
| title_full_unstemmed | Analysis of thyroid absorbed dose in cervical CT scan with the use of bismuth shielding |
| title_short | Analysis of thyroid absorbed dose in cervical CT scan with the use of bismuth shielding |
| title_sort | analysis of thyroid absorbed dose in cervical ct scan with the use of bismuth shielding |
| topic | Computed Tomography Dosimetry Bismuth shielding. |
| url | https://bjrs.org.br/revista/index.php/REVISTA/article/view/614 |
| work_keys_str_mv | AT fernandastephaniesantos analysisofthyroidabsorbeddoseincervicalctscanwiththeuseofbismuthshielding AT alvaromauricioladinogomez analysisofthyroidabsorbeddoseincervicalctscanwiththeuseofbismuthshielding AT claryssonalbertomelodasilva analysisofthyroidabsorbeddoseincervicalctscanwiththeuseofbismuthshielding AT prisciladocarmosantana analysisofthyroidabsorbeddoseincervicalctscanwiththeuseofbismuthshielding AT arnaldopratamourao analysisofthyroidabsorbeddoseincervicalctscanwiththeuseofbismuthshielding |