Background Radiation Dose in Selected X-Ray Facilities in Southwest Nigeria

Achuka, J. A.; Usikalu, M.R.; Aweda, Moses Adebayo; Onumejor, C. A.; Babarimisa, I. O.

doi:10.1088/1742-6596/1299/1/012103

Cited by 3 publications

(1 citation statement)

References 9 publications

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“…However, the values measured in this research in the Ten (10) X-rays diagnostics centers are all higher than the ICRP safe limit of 0.133 µSv/hr. This result of this research in agrees with the previously reported work on background radiation dose in selected X-ray facilities in southwest Nigeria [19], and the evaluation of background ionizing radiation levels in some X-ray centers in Owerri, Imo State, Nigeria [20]. This indicate that the diagnostic centers within Port Harcourt local government areas may not be safe for both occupational workers and patients of the general public who receive radiological diagnosis evaluation.…”

Section: Resultssupporting

confidence: 88%

Evaluation of Excess Lifetime Cancer Risk in Some Selected X-Ray Diagnostic Centers in Port Harcourt, Rivers State, Nigeria

Orlunta¹,

Sokari²

2023

AJARR

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The evaluation of background ionizing radiation in some selected X-rays diagnostic centers in Port Harcourt has been carried out. This research was achieved with the used of Radex (RD 1212) radiation meter to measure the exposure rate due to ionizing radiation, and geographical coordinate system was employed to record the coordinates of the sampled locations. The exposure rate ranged from 0.14 to 0.22 μSv/h with a mean value of 0.180.03 μSv/h, this value was quite higher than the acceptable limit of 0.133μSv/h set by the international commission on radiological protection (ICRP). The computed annual equivalent dose ranged from 0.25 to 0.39 mSv/y with a mean value of 0.310.05 mSv/y, the annual effective dose equivalent (AEDE) dose varied from 0.17 to 0.27 mSv/y with a mean value of 0.220.35 mSv/y. This value is lesser than the safe limit of 1mSv/y as recommended by ICRP. The excess lifetime cancer risk (ELCR) ranged from 0.64x10-3 to 0.77x10-3 mSv/y with a mean value of 0.760.12x10-3 mSv/y which is quite higher than the safe limit of 0.29x10-3 (UNSEAR). Therefore, the diagnostic centers in Port Harcourt may not be radiologically safe to both occupational workers and patients who are radiologically diagnosed from the general public. Even though the signs of health risk issues are not physically pronounced the chances of contracting radiological health relative issues is still significant. Therefore, is it recommended that adequate steps should be taken to ensure that radiation leakage should be contained, if possible to the barest minimum.

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Section: Resultssupporting

confidence: 88%

Evaluation of Excess Lifetime Cancer Risk in Some Selected X-Ray Diagnostic Centers in Port Harcourt, Rivers State, Nigeria

Orlunta¹,

Sokari²

2023

AJARR

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X-Ray Imaging Techniques Appraisal: Pathway to Sustainable Health Status

Achuka

Usikalu

Aweda

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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There is possibility for sustainable healthcare delivery through the implementation of periodic x-ray imaging techniques appraisal. The aim of this study is to evaluate the x-ray imaging techniques in the study area in order to promote sustainable health status of the populace. Data for this study was collected from 12 major healthcare institutions located in Southwest Nigeria using self-structured form. The study centres were designated using S1 to S12. The x-ray imaging techniques in the study area were radiography, computed tomography (CT), mammography and fluoroscopy. Radiography machine was available in all the study centres while 75 % of the centres had CT scanners, 50 % had mammography machines and 25 % had fluoroscopy machines. The x-ray imaging centre with the highest number of equipment is Centre S2 while Centre S6 has the least equipment. The outcome of this study implied that x-ray imaging techniques appraisal would boost procurement of more and newer equipment, enhance improved quality and efficiency of the x-ray equipment. Thereby, accord patients accessibility to all the benefits of the modalities x-ray imaging can provide; and consequently promoting patients health status. Hence, this study recommended the implementation of periodic x-ray imaging techniques appraisal.

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Experimental Assessment of Workplace Radiation Exposure in Diagnostic X-ray Medical Imaging Centres in Benin from 2019 to 2020

Gbetchedji

Mansouri

Hounsossou

et al. 2021

Annals of Work Exposures and Health

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The ease of prescribing radiological examinations has prompted an expansion in radiological procedures and, consequently, an increase of occupational dose to medical imaging workers. However, little is known about radiation exposure in the workplace of medical radiology professionals in many countries, and in Benin particularly. The purpose of this study was to assess ambient radiation doses in diagnostic X-ray medical facilities in Benin and to observe whether exposure levels are below reference levels. A total of 72 public and private medical imaging centres participated in a cross-sectional study carried out from June 2019 to February 2020 in Benin. These centres had 59 X-ray, four chest and six computed tomography (CT) scan rooms. A calibrated radiameter able to measure short, pulsed or continuous X fields and gamma/beta (50 nSv to 10 Sv) was used to measure exposure levels in these functional rooms. Scattered X-ray doses and exposure time from radiological examinations both behind the lead glass of the control area to assess the levels of exposure of professionals and outside of the examination room to evaluate the level of exposure of the public (including non-exposed workers) have been provided. Equivalent doses estimated per hour were compared with the reference levels of 7.50 and 0.05 µSv per hour for workers and the public, respectively. At the control area, the mean/median (min-max) equivalent doses were 0.09/0.07 (0.00–0.21), 2.39/0.13 (0.00–75.67), and 228.39/28.65 (0.39–869.75) µSv per hour for the chest, X-ray, and CT-scan rooms, respectively. Among 69 examination rooms, 13.04% of the equivalent dose estimated in the workplace behind the lead glass was greater than 7.50 µSv per hour; 65 out of 69 examination rooms showed that 40.00% of the equivalent dose estimated behind the doors was greater than 0.05 µSv per hour. These results demonstrated that current controls, including leaded glass separating the control panel and leaded doors between the examination room and the corridor, are inadequate to limit radiation exposures. The controls must be upgraded and a dosimetry program should be implemented to monitor exposures of employees, patients, and visitors.

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Background Radiation Dose in Selected X-Ray Facilities in Southwest Nigeria

Cited by 3 publications

References 9 publications

Evaluation of Excess Lifetime Cancer Risk in Some Selected X-Ray Diagnostic Centers in Port Harcourt, Rivers State, Nigeria

Evaluation of Excess Lifetime Cancer Risk in Some Selected X-Ray Diagnostic Centers in Port Harcourt, Rivers State, Nigeria

X-Ray Imaging Techniques Appraisal: Pathway to Sustainable Health Status

Experimental Assessment of Workplace Radiation Exposure in Diagnostic X-ray Medical Imaging Centres in Benin from 2019 to 2020

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