Medical exposure and risk estimation during routine radio-diagnostic examinations in Agadir City in 2012

Amaoui, Bouchra; Semghouli, Slimane; Kharras, A. El; Fahssi, Mohammed El; Hakam, Oum Keltoum; Choukri, Abdelmajid

doi:10.1080/16878507.2019.1695382

Cited by 5 publications

(4 citation statements)

References 9 publications

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“…Despite the growing number of CT machines in Morocco, the Diagnostic Reference Levels (DRL) have yet to be defined. Thus, several previous studies have shown a significant variation in the doses administered to patients for the same radiological examination procedure [ 20 - 26 ]. The aim of this pilot study at Hassan II Hospital of Agadir was to estimate the doses during radiation medical exposure of four CT scan procedures so that local diagnostic reference levels (DRLs) could be established.…”

Section: Introductionmentioning

confidence: 99%

Radiation doses during computed tomography scan imaging in Hassan II Hospital, Agadir, Morocco

Semghouli¹,

Amaoui²,

Wakrim³

2022

Pan Afr Med J

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Introduction the aim of this study was to establish local Diagnostic Reference Levels (DRLs) for four adult Computed Tomography (CT) examinations in the radiology department, Hassan II hospital of Agadir. Methods during this survey, we have examined the data of 200 patients at an average of 50 per localization. A General Electric 16 CT with automatic exposure control system was used to perform all CT examinations. Scanner acquisition parameters, number of series, contrast medium use, rotation time plus slice thickness, the displayed Computed Tomography Dose Index (CTDI vol ), and the Dose Length Product (DLP) were among the data collected for each diagnostic exam chosen. To evaluate the DRL and effective dose, the conversion factor and formalism of the International Commission on Radiological Protection (ICRP) were utilized. Results the average effective dose (Eeff), the displayed CT dose index (CTDI vol ), dose length product (DLP) were (7.28±2.35) mSv, (10.80±3.80) mGy and (428.35±138.26) mGy.cm respectively at chest CT. For abdomen-pelvis CT scan, there were (12.48±5.58) mSv, (9.30±2.99) mGy and (805.43±359.98) mGy. Those at chest abdomen-pelvic CT scan were (11.72±3.98) mSv, (10.82±2.53) mGy and (755.97±251.52) mGy.cm respectively. For lumbar CT, there were (12.12±2.32) mSv, (26.46±5.24) mGy and (787.00±149.37) mGy.cm respectively. Conclusion the findings of this study shows that our values are slightly higher than those of developed countries. This first-ever CT practice evaluation at Agadir's Hassan II Hospital reinforced the need for further radiology training for computed tomography practitioners on parameters influencing image quality, dose, and protocols improvement.

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Section: Introductionmentioning

confidence: 99%

Radiation doses during computed tomography scan imaging in Hassan II Hospital, Agadir, Morocco

Semghouli¹,

Amaoui²,

Wakrim³

2022

Pan Afr Med J

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“…In Morocco, the scarcity of studies on exposure to ionizing radiation during medical examinations of the population [10] [11] and on the establishment of diagnostic reference levels [12] [13] [14] [15] [16] has led us to explore the exposure of the kidneys during CT examination of the abdomen.…”

Section: Introductionmentioning

confidence: 99%

Radiation Risks of Kidney during Abdominal CT Procedures in Morocco: A Multicentre Study

Amaoui¹,

Semghouli²,

Safini³

et al. 2021

JBM

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This study aimed to estimate renal effective dose during abdominal CT scans in order to assess the renal risks of cancer and heredity per procedure in Moroccan hospitals. It's consisted of examining a total of 120 patients referred to three radiology departments for an abdominal CT scan at the rate of 40 per hospital. The data that collected for this diagnostic exam included scanner acquisition parameters, number of series, use of the contrast medium, and rotation time as well as slice thickness, the displayed CT dose index (CTDI vol ) and the Dose Length Product (DLP). Renal dose, effective dose and biological risks were estimated using the International Commission on Radiological Protection (ICRP) conversion factor. The patients included in this study were an average age of the (46.49 ± 14.16) years and an average weight of (73.34 ± 7.58) kg. For the mean effective dose (E) and average kidney dose (D K ) received per patient during an abdominal CT scan, it were respectively of (6.67 ± 2.73) and (18.26 ± 7.74) mSv. The distribution of these values according to the hospital variable shows a difference in mean effective dose of the order of 0.26, 0.38 and 1.45 mSv and a difference in the mean renal dose of the order of 8.76, 4.94 and 0.48 mSv respectively for H1, H2 and H3. The induction cancer risk of abdominal and kidney per 10 5 procedures was respectively of 3 and 10. The kidney cancer risk by procedure is two to three times more likely than abdominal. For hereditary risk of abdominal and renal exposure per 10 6 procedures, it is 14 and 21 respectively. The renal stochastic effect by procedure is also two to three times more likely than that of the abdomen. Our values are relatively higher than those of published in some previous studies. Cancer risk and heredity estimation highlights the need to limit radiation dose. This first ever survey confirmed the need to improved training of health professionals involved in computed tomography on factors affecting image How to cite this paper:

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“…Medical X-ray is most common forms of radiation in medicine, and one of the largest manmade sources of radiation exposure to patients, radiology staff (workers), and the general populace, hence there exists the problem of safely delivering radiation dose when imaging biological tissues [1][2][3]. For example, conventional radiography accounts more than 80 % of X-ray-based imaging [4], and it is considered a responsible for the most of the radiation exposure associated with all medical imaging techniques [5].…”

Section: Introductionmentioning

confidence: 99%

“…Hence, scattered radiation is considered the main source of the occupational radiation exposure [6,7]. According to ICRP Publication 103 (ICRP, 2007) the overall cancer risk coefficient has been estimated F CR = 55 mSv for the population, while F CR = 41 mSv for the adult workers [5]. Therefore, there is a need to reduce backscattered radiation dose to protect patients and radiology workers in an X-ray room from unnecessary radiation exposure [8,9].…”

Section: Introductionmentioning

confidence: 99%

Bio-Polymer Based Tragacanth Gum (TG) Loaded Fe3O4 Nanocomposite for the Sequestration of Tenacious Congo Red Dye from Waste Water

Naji¹,

Ali²

2020

J. Mater. Sci. Technol. Res.

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This paper estimates backscattered radiation doses at patient's positioning level (exposed object) using different X-ray tubes. The effects of different exposure sittings (X-ray tube voltage, exposure intensity, exposed area, dosimeter position, and distance between X-ray tube and imaged object surface) on backscattered radiation doses are estimated using different dosimeters and x-ray units. The quantity of recorded backscattered radiation dose -which reflects from patient's table or bucky to image receptor and exposed patient -is determined by the position of dosimeter between exposed object's table or bucky and X-ray tube according to backscatter angle, at higher backscattered angle, the dosimeter records more backscattered dose. The results showed that, increase in kVp, exposure intensity, and exposed area led to a concomitant increase in the quantity of backscattered radiation, whereas the Increase in distance between X-ray tube (source) and imaged object surface reduces the amount of backscattered radiation dose. As well as, there is no remarkable difference in recorded backscattered dose due to the position of X-ray tube or the direction of incident X-ray photons.

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Medical exposure and risk estimation during routine radio-diagnostic examinations in Agadir City in 2012

Cited by 5 publications

References 9 publications

Radiation doses during computed tomography scan imaging in Hassan II Hospital, Agadir, Morocco

Radiation doses during computed tomography scan imaging in Hassan II Hospital, Agadir, Morocco

Radiation Risks of Kidney during Abdominal CT Procedures in Morocco: A Multicentre Study

Bio-Polymer Based Tragacanth Gum (TG) Loaded Fe3O4 Nanocomposite for the Sequestration of Tenacious Congo Red Dye from Waste Water

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