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Asgari A, Parach AA, Mirmohammadi SJ, Mehrparvar AH, Daneshian E, Nekoofar Z. Investigating the effective annual dose of radiation angiography department of Afshar Hospital in Yazd and providing radiation protection strategies to better manage the dose received by staff. Occup Med (Lond) 2020. [DOI: 10.18502/tkj.v12i1.3657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Introduction: Due to the increasing use of angiography procedures and the higher risk of deterministic and stochastic effects for radiation workers of these sections than other radiological procedures, radiation safety is very important among angiography staff. Therefore, this study aimed to obtain the effective dose of angiography staff, compare them with the standard dose limit, and finally outline the strategies for occupational dose reduction in angiography.
Methods: In this study, the report of film dosimetry of angiography staff was studied and the effective periodic and annual doses of 34 radiographs were reported from the year 2015 to 2018. The relationship between effective dose and body mass index, work experience, gender and age of staff was also evaluated.
Results: The results showed that the average effective dose of the physicians, nurses and radiographers in 2 months period were 0.2 mSv and their average annual effective dose were 1.6, 1.2 and 1.2, respectively. In addition, there were no significant relationship between effective dose and work experience, age, sex and BMI of the radiation workers.
Conclusion: The effective dose of radiation in this study is less than the annual dose.. Low effective doses do not make their radiation protection less important because this reduction can be due to radiation protection by personnel in this ward. Therefore, as far as possible, radiation protection measures should be taken to reduce the radiation exposure of catheterization lab staff. In these radiologists thyroid protection, eyes, gonads, and the organs that are usually outside the lead apron is of great importance.
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Asgari A, Parach AA, Mirmohammadi SJ, Mehrparvar AH, Nekoofar Z, Daneshian E, Bouzarjomehri F, SeyedHosseini SM, Andishmand A, Dastmalchi J, Emami M. Occupational eye dose to medical staff in various interventional cardiologic procedures: is the need for lead goggles the same in all groups of radiation workers? Int J Cardiovasc Imaging 2020; 36:1417-1425. [PMID: 32350705 DOI: 10.1007/s10554-020-01864-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 04/23/2020] [Indexed: 10/24/2022]
Abstract
Considering the increased use of interventional cardiologic procedures and concern about irradiation to the eyes, it is necessary to measure eye dose in radiation workers. The assessment of eye dose using collar dose is a routine but inaccurate method. Therefore this study was designed to measure eye dose in the radiation workers of various interventional cardiologic procedures. In this study eye dose was measured for left and right eyes in three groups of radiation workers in angiography ward of Afshar hospital in various procedures using TLD. Measurements were done separately for cardiologists, nurses and radio-technologists in 100 procedures. The nurses functioned as surgical assistants and were usually close to the table. The correlation of staff dose to exposure parameters was also investigated. Eye dose in physicians were higher than other staff in all procedures. Also the left eye dose was considerably higher than right one, especially for physicians. The median equivalent dose per procedure of left eye for physicians, nurses and radio-technologists were 7.4, 3.6, 1.4 µSv (PCI) and 3.2, 3.1, 1.3 µSv (Adhoc) and 3.2, 1.7, 1.1 µSv (CA), respectively. The annual left eye equivalent dose with (without) using lead goggles were 2.4 (15.3), 1.4 (2.2), 1.0 (1.1) mSv for physicians, nurses and radio-technologists, respectively. There were also a positive correlation between eye dose and KAP for procedures without lead goggles. The lead goggles showed lower protection effects for radio-technologists than other staff. Only 30% of physicians received a dose higher than 1/3 of the ICRP annual dose limit, therefor only physician eye dose should be monitored in catheterization labs.
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Affiliation(s)
- Azam Asgari
- Industrial Diseases Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Ali Asghar Parach
- Department of Medical Physics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | | | - Amir Houshang Mehrparvar
- Industrial Diseases Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Zahra Nekoofar
- Department of Radiation Technology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Elahe Daneshian
- Department of Radiation Technology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Fatollah Bouzarjomehri
- Department of Medical Physics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | | | - Abbas Andishmand
- Cardiovascular Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Jalal Dastmalchi
- Cardiovascular Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mahmood Emami
- Cardiovascular Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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