Internal exposure in nuclear medicine: application of IAEA criteria to determine the need for internal monitoring

Dantas, Bernardo Maranhão; Lucena, Evandro; Dantas, Ana Letícia Almeida

doi:10.1590/s1516-89132008000700017

Cited by 10 publications

(7 citation statements)

References 4 publications

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“…Dantas et al . [ 23 ] observed that 131 I presents a high risk, and internal monitoring of 131 I should be included in the radiological protection plan, especially when used in therapeutic applications where the quantity of activity administered to each patient is usually several tens of millicuries. Bento et al .…”

Section: Discussionmentioning

confidence: 99%

“…The second part is the study of the necessity of internal monitoring for nuclear medicine staff. Researchers in Chile [ 21 ], Portugal [ 22 ], Brazil [ 23 ] have carried out some research based on the aforementioned methodology to determine whether staff should be subjected to internal monitoring. Since the 1980s, there have been only a few studies and a small number of reports on the work of internal exposure in the field of nuclear medicine in China [ 9 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

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Necessity of Internal Monitoring for Nuclear Medicine Staff in a Large Specialized Chinese Hospital

Wang

Zhang

et al. 2016

IJERPH

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This work intends to quantify the risk of internal contaminations in the nuclear medicine staff of one hospital in Henan province, China. For this purpose, the criteria proposed by the International Atomic Energy Agency (IAEA) to determine whether it is necessary to conduct internal individual monitoring was applied to all of the 18 nuclear medicine staff members who handled radionuclides. The activity of different radionuclides used during a whole calendar year and the protection measures adopted were collected for each staff member, and the decision as to whether nuclear medicine staff in the hospital should be subjected to internal monitoring was made on the basis of the criteria proposed by IAEA. It is concluded that for all 18 members of the nuclear medicine staff in the hospital, internal monitoring is required. Internal exposure received by nuclear medicine staff should not be ignored, and it is necessary to implement internal monitoring for nuclear medicine staff routinely.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Necessity of Internal Monitoring for Nuclear Medicine Staff in a Large Specialized Chinese Hospital

Wang

Zhang

et al. 2016

IJERPH

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“…For thyroid diseases, 131 I is used for diagnostic and therapeutic purpose (3)(4)(5). When occupational workers process and labels the unsealed liquid sources with labeling compounds, the sources may enter their systems through inhalation and ingestion.…”

Section: Introductionmentioning

confidence: 99%

Individual Monitoring of Internal Exposure for Nuclear Medicine Workers in NINMAS through In-Vitro Bioassay Techniques

Shubho

Prodhan

Begum

et al. 2021

Bangladesh J. Nuclear Med.

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Internal radiation monitoring of occupational radiation workers is essential for protecting them against the risks of incorporated radionuclides. More than 400 workers in Bangladesh are working with unsealed radioactive sources and most of them are employed at different nuclear facilities. Among the 18 Nuclear Medicine Centers in the country, the National Institute of Nuclear Medicine and Allied Science (NINMAS), Dhaka was selected for this study where workers get internal radiation exposure while processing and labeling of the liquid sources. The aim of this study was to estimate the activity concentration and committed effective doses from bioassay sample, namely urine samples of Nuclear Medicine (NM) workers due to handling of radioactive Iodine (131I), Technetium (99mTc) and Fluorine (F-18). Total 86 urine samples were collected from 17 occupational workers of NINMAS during the year 2017 and analyzed using High Purity Germanium (HPGe) detector. The radioactivity of 131I and (99mTc) was found 2.21±0.44 BqL-1 to 444 ± 39.91 BqL-1 and 5.53±1.12 BqL-1 to 603 ± 72.36 BqL-1 respectively. Due to low activity of the unsealed F-18 sources and for appropriate shielding, radioactivity of F-18 was found below the minimum detection level in the urine samples of the workers who handled it. The effective doses of occupational workers have also been calculated using the radioactivity concentration and the dose coefficients given in ICRP publication 78. The highest and lowest effective doses due to handling of the unsealed source of (99mTc) were 28.2 and 0.0258μSv for working with 780 and 36mCi of radionuclide respectively. On the other hand, the highest and lowest effective doses due to handling of 131I were 8.73and 0.045μSv, for working with 1425 and 55 mCi respectively. Both the doses are found to comply with ICRP annual dose limit of 20 mSv. Bangladesh J. Nuclear Med. 22(2): 125-129, Jul 2019

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“…Moreover, due to short half life the internal radiation risk that it poses may sometimes be over looked. Although it is recognized that in nuclear medicine centers external exposure is usually higher than internal exposure, the risks associated with intakes should be estimated in each case and, if necessary, staff involved in the handling of unsealed sources should be routinely monitored in order to ensure that individual doses are kept as low as possible [1]. Internal monitoring should also be performed in response to an accident or suspected inhalation or ingestion intake.…”

mentioning

confidence: 99%

Assessment of Activity Concentration and Effective Doses from Bioassay Sample of Occupational Workers in NINMAS, Bangladesh

Ferdous

Hossain

Begum

et al. 2016

IJRRT

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Internal exposure in nuclear medicine: application of IAEA criteria to determine the need for internal monitoring

Abstract: ABSTRACT

Cited by 10 publications

References 4 publications

Necessity of Internal Monitoring for Nuclear Medicine Staff in a Large Specialized Chinese Hospital

Necessity of Internal Monitoring for Nuclear Medicine Staff in a Large Specialized Chinese Hospital

Individual Monitoring of Internal Exposure for Nuclear Medicine Workers in NINMAS through In-Vitro Bioassay Techniques

Assessment of Activity Concentration and Effective Doses from Bioassay Sample of Occupational Workers in NINMAS, Bangladesh

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