Assessment of patients X-ray doses at three government hospitals in Duhok city lacking requirements of effective quality control

Yacoob, Haval Y.; Mohammed, Hariwan A.

doi:10.1016/j.jrras.2017.04.005

Cited by 12 publications

(5 citation statements)

References 12 publications

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“…Tube filtration removes lower energy X-rays from the X-ray spectrum which otherwise would have caused unnecessary radiation dose to patients and degrade image quality. This observation was consistent with similar observation by Sezdi (2011) who reported that tube filtration could also affect tube output of X-ray equipment (25) . It was observed that kVp has quadratic effect on the tube output therefore, difference in measured kVp from different equipment would result in variations in the tube output.…”

Section: Discussionsupporting

confidence: 93%

Entrance skin dose assessment of selected computed radiography facilities in Ghana

2020

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Background:The basic challenge with computed radiography (CR) systems is the large dynamic range which provides an opportunity for radiographers to gradually increase exposure factors and still produce good image quality, a practice that can lead to dose creep. Materials and Methods: The aim of this study was to establish the entrance skin dose (ESD) values for nine selected examinations in three CR facilities in Ghana (chest PA, abdomen AP, lumbar Pelvis AP, lumbar spine LAT, cervical spine AP, cervical spine LAT, skull PA and skull LAT). ESD was estimated by the indirect method involving the use of a standard equation. The study involved 150 females and 120 males with the average age of 50 ± 14 years. The average weight of the study population was 69 ± 8 kg, and the average height of 162 ± 9 cm. The CR systems used at all the hospitals were manufactured by Shimadzu medical systems (Kyoto, Japan) and the model number was UD150L-40E. Results: The average ESDs (mGy) for each examination were; 0.93 ± 0.7, 3.04 ± 0.4 , 4.95 ± 0.9, 0.59 ± 0.3, 0.63 ± 0.4, 1.77 ± 0.3, 1.64 ± 0.3, 2.31 ± 0.4 and 3.15 ± 0.6 for chest PA, lumbar spine AP, lumber spine LAT, cervical spine AP, cervical spine LAT, skull PA, skull LAT, pelvis AP, and abdomen AP respectively. The single factor ANOVA t-test that was performed indicated a significant difference (p-value = 5.73 x 10 -15 ) among the ESDs for chest PA examination. Conclusion: Over exposure of patients is very possible with CR systems, it is therefore important for patient dose to be audited periodically in order to achieve the principles of As Low As Reasonably Achievable (ALARA).

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Section: Discussionsupporting

confidence: 93%

Entrance skin dose assessment of selected computed radiography facilities in Ghana

2020

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“…The consequences were high patient dose, image distortion, clipping of important anatomy, and grid cut-off among others [9]. A similar study reported patient dose reduction in the range of 31-77% for equipment having quality control assessment, while none calibrated equipment increased patient dose up to a factor of 1-5 times more than IAEA guidance level [13]. The study by Ngaile et al confirmed that the lowering of mAs is suitable for x-ray equipment with higher timer reproducibility, while an increase in tube potential works well in equipment with high accuracy and voltage consistency [14].…”

Section: Introductionmentioning

confidence: 95%

Performance Characteristics of Radiographic equipment in Selected Healthcare Institutions in Southwest Nigeria

Ada

Rachael

Adebayo

et al. 2020

Open Access Maced J Med Sci

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BACKGROUND: Evaluation of radiographic equipment performance is the recommended strategy for the verification of factors used in radiodiagnosis. Sometimes, the performance of the equipment is compromised due to the lack of adoption of the appropriate procedures and/or techniques. AIM: The aim of this study was to determine the performance quality of the radiographic equipment in the study area in order to optimize the radiation dose delivered to the patients using these facilities and enhance their safety. METHODS: The performance characteristic of selected radiographic equipment was determined using MagicMax quality control kits and test object. Radiographic equipment in eight selected radiodiagnostic centers designated as C1-C8 was assessed. RESULTS: The results showed that all the radiography units in the studied centers passed the kVp reproducibility and mAs linearity tests with the exception of center C2. The kVp deviation for the centers varied between 2.0 and 7.7%, with the highest deviation in center C5 and lowest value in center C6. Center C7 has the highest deviation (–13%) of mAs, while the lowest value was obtained in center C6 (0%). The dose was lowest in center C1 and highest in center C3. The half-value layer, mAs, and filtration values had a stronger correlation with the incident air kerma dose compared to the other parameters. In addition, 50% of the equipment passed all the performance tests. CONCLUSION: The study revealed that the performance characteristics of radiographic equipment in the studied area require improvement. Periodic monitoring of the equipment performance is recommended for adoption and enforcement to enhance quality practices and radiation safety.

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“…Evidence has shown that DRLs should form part of a quality control (QC) programme [22] . DRLs should be recalculated quarterly and compared to the baseline values proposed by the AAPM Imaging Physics Committee Task Group [23] .…”

Section: Pidrls Contribution To Image Qualitymentioning

confidence: 99%

A practical guide for paediatric diagnostic reference levels (PiDRLs)

Lackay

Horn-Lodewyk

Müller

2022

Journal of Medical Imaging and Radiation Sciences

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Assessment of patients X-ray doses at three government hospitals in Duhok city lacking requirements of effective quality control

Abstract: To cite this article: Haval Y. Yacoob (Assistant Prof of Radiation Biophysics) & Hariwan A. Mohammed (Assistant Physics) (2017) Assessment of patients X-ray doses at three government hospitals in Duhok city lacking requirements of effective quality control,

Cited by 12 publications

References 12 publications

Entrance skin dose assessment of selected computed radiography facilities in Ghana

Entrance skin dose assessment of selected computed radiography facilities in Ghana

Performance Characteristics of Radiographic equipment in Selected Healthcare Institutions in Southwest Nigeria

A practical guide for paediatric diagnostic reference levels (PiDRLs)

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