New filter for iodine applied in nuclear medicine services

Ramos, Vitor Santos; Crispim, V.R.; Brandão, Luís Eduardo Barreira

doi:10.1016/j.apradiso.2013.07.029

Cited by 8 publications

(4 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Nuclear technology is prominent in two sectors that are intrinsic parts of our lives: power generation 1 and medicine. 2 Nuclear power plants (NPP) are regarded as a source of clean, renewable, and cost-effective energy, 3 while nuclear medicine forms the core of many diagnostic techniques and treatments for illnesses plaguing mankind. 4 Nuclear-related processes produce many by-products such as isotopes of iodine ( 129 I and 131 I), 135 Cs and 99 Tc, some of which emit alpha (α), beta (β), gamma (γ), and neutron (n), all of which are hazardous to humans and the environment.…”

Section: Introductionmentioning

confidence: 99%

Capture and immobilisation of iodine (I₂) utilising polymer-based ZIF-8 nanocomposite membranes

Mahdi

Chaudhuri

Tan

2016

Mol. Syst. Des. Eng.

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Capture and immobilisation of iodine (I₂) utilising polymer-based ZIF-8 nanocomposite membranes

Mahdi

Chaudhuri

Tan

2016

Mol. Syst. Des. Eng.

View full text Add to dashboard Cite

show abstract

“…Unsealed radiopharmaceuticals such as 131 I are frequently used in the nuclear medicine department for therapeutic purposes, potentially giving rise to significant occupational doses, up to 7.7 mSv per year in the recorded study of Bitar et al 24 . Thus, it is essential to ensure that staff receive minimal occupational dose from external and internal incorporated radioiodine, the latter due to inhalation of radioactive iodine due to its volatile nature (airborne iodine as an aerosol, CH 3 I and iodine vapour (I 2 )) 28 – 30 . Miszczyk et al 31 have reported staff radioiodine incorporation at a nuclear medicine department of up to 217 ± 56 Bq.…”

Section: Introductionmentioning

confidence: 99%

Occupational exposure and radiobiological risk from thyroid radioiodine therapy in Saudi Arabia

Al-Mohammed

Sulieman

Mayhoub

et al. 2021

Sci Rep

View full text Add to dashboard Cite

Worldwide, thyroid cancer accounts for some 10% of total cancer incidence, most markedly for females. Thyroid cancer radiotherapy, typically using 131I (T1/2 8.02 days; β− max energy 606 keV, branching ratio 89.9%), is widely adopted as an adjunct to surgery or to treat inoperable cancer and hyperthyroidism. With staff potentially receiving significant doses during source preparation and administration, radiation protection and safety assessment are required in ensuring practice complies with international guidelines. The present study, concerning a total of 206 patient radioiodine therapies carried out at King Faisal Specialist Hospital and Research Center over a 6-month period, seeks to evaluate patient and occupational exposures during hospitalization, measuring ambient doses and estimating radiation risk. Using calibrated survey meters, patient exposure dose-rate estimates were obtained at a distance of 30-, 100- and 300 cm from the neck region of each patient. Occupational and ambient doses were measured using calibrated thermoluminescent dosimeters. The mean and range of administered activity (AA, in MBq) for the thyroid cancer and hyperthyroidism treatment groups were 4244 ± 2021 (1669–8066), 1507.9 ± 324.1 (977.9–1836.9), respectively. The mean annual occupational doses were 1.2 mSv, that for ambient doses outside of the isolation room corridors were found to be 0.2 mSv, while ambient doses at the nursing station were below the lower limit of detection. Exposures to staff from patients being treated for thyroid cancer were less compared to hyperthyroidism patients. With a well-defined protocol, also complying with international safety requirements, occupational exposures were found to be relatively high, greater than most reported in previous studies.

show abstract

“…Em 2010 Ramos et al testaram a eficiência do carvão ativo para a adsorção do I 2, uma das forma mais comuns de iodo volátil encontrado nos Serviços de Medicina Nuclear (SMNs), constatando uma eficiência de 100% de retenção desta forma química. Segundo Sales (1981), [13] o uso do carvão como meio filtrante deve ser controlado devido ao seu baixo ponto de ignição, ou seja, quanto menor a quantidade de carvão, maior a segurança [14].…”

Section: Introductionunclassified

Avaliação da Exposição Interna de trabalhadores em serviços de medicina nuclear através da análise de aerossóis contendo 131I

Carneiro¹,

Almeida²,

Dantas³

et al. 2015

Braz. J. Rad. Sci.

View full text Add to dashboard Cite

Neste estudo foram avaliados os riscos de exposição ocupacional interna associados à incorporação de 131 I, via inalação, em Serviços de Medicina Nuclear, utilizando técnicas de análise de aerossóis. Os Indivíduos Ocupacionalmente Expostos (IOE) envolvidos na manipulação deste radionuclídeo estão sujeitos à exposição crônica, o que pode levar a um aumento da dose efetiva comprometida. Resultados obtidos em estudos preliminares indicam a ocorrência de incorporação de 131 I por profissionais envolvidos na manipulação de soluções destinadas a procedimentos de iodoterapia. A avaliação foi realizada no laboratório de radiofarmácia do SMN de um Hospital público localizado na cidade do Rio de Janeiro. Depois de confirmada, através de uma avaliação qualitativa, a presença do radioisótopo, foi determinado um arranjo experimental para a coleta de amostra, tendo sido detectada e quantificada a presença de vapor de 131 I durante a rotina de trabalho. A concentração média de atividade obtida neste estudo foi de 3 Bq / m³. Este valor está abaixo Concentração Derivada no Ar (DAC) de 8,4 x 10 3 Bq de 131 I / m³ correspondendo a uma dose efetiva comprometida de 1,76 x 10 -4 mSv. Estes resultados demostram que o ambientes estudados é seguro em termos de exposição interna dos trabalhadores. No entanto, a presença de 131 I deve ser periodicamente reavaliada, uma vez que este tipo de exposição contribui para o aumento das doses efetivas individuais. Com base nos dados obtidos foram sugeridas melhorias no sistema de exaustão e a utilização de boas práticas de trabalho visando à otimização das exposições.

show abstract

New filter for iodine applied in nuclear medicine services

Cited by 8 publications

References 7 publications

Capture and immobilisation of iodine (I₂) utilising polymer-based ZIF-8 nanocomposite membranes

Capture and immobilisation of iodine (I₂) utilising polymer-based ZIF-8 nanocomposite membranes

Occupational exposure and radiobiological risk from thyroid radioiodine therapy in Saudi Arabia

Avaliação da Exposição Interna de trabalhadores em serviços de medicina nuclear através da análise de aerossóis contendo 131I

Contact Info

Product

Resources

About

New filter for iodine applied in nuclear medicine services

Cited by 8 publications

References 7 publications

Capture and immobilisation of iodine (I2) utilising polymer-based ZIF-8 nanocomposite membranes

Capture and immobilisation of iodine (I2) utilising polymer-based ZIF-8 nanocomposite membranes

Occupational exposure and radiobiological risk from thyroid radioiodine therapy in Saudi Arabia

Avaliação da Exposição Interna de trabalhadores em serviços de medicina nuclear através da análise de aerossóis contendo 131I

Contact Info

Product

Resources

About

Capture and immobilisation of iodine (I₂) utilising polymer-based ZIF-8 nanocomposite membranes

Capture and immobilisation of iodine (I₂) utilising polymer-based ZIF-8 nanocomposite membranes