Estimated radiation exposure from medical imaging for patients of radiology service of Al Faraby Hospital, Oujda Morocco

Abstract

The additional cancer risk factor is calculated by the X-ray risk software promoting responsible imaging through patient and provider education. It is function of the effective dose received, the age at the time of exam, and gender of patient. Results: The radiological average effective dose received per act exam is 1 millisievert (mSv), whereas it is 4.45 mSv and 0.21 mSv for the computed tomography (CT) scan and conventional radiological examinations, respectively. As for the average number of acts per patient 2.66, the effective dose is 1.16 mSv and 3.8 mSv for CT scan and conventional radiological examinations, respectively. As for the average effective dose per patient 2.69 mSv, it is 5.16 mSv and 0.81 mSv for CT scan and conventional radiological examinations, respectively. As for the additional cancer risk in 40 years at the time of exam, the average additional cancer risk is equal to 2.17 × 10 -4 , wheras the risk is 4.17 × 10 -4 and 6.54 × 10 -5 for CT scan and conventional radiological examinations, respectively. Conclusion: Medical exposure related to the diagnosis of patients in the radiology service in 2012 can be characterized by: (a) 2.66 Act exams on average per patient diagnosis corresponding to a mean effective dose equal to 2.69 mSv per patient, (b)frequency of conventional radiology and CT scan was 81% and 19%, respectively. These act exams contribute to the collective effective dose by 17% and 83%, respectively, and (c) radiological acts can be divided into three levels of exposures: 0 to 5 mSv, 5 to 10 mSv, and > 5 mSv, and the proportion of each level is 90.12%, 9.84%, and 0.05%, respectively.

A Study on Effective Dose to Patients and Workers During Diagnostic X-ray Procedure in UTHM Health Centre

“…Overall, it can be said that the effective dose to the controlled and supervised area of UTHM Health Centre is under the reference dose limit. Comparing the results obtained from this study with previous studies is considered to be difficult due to the significant difference in the method of dosimetry as well as other factors that may affect the actual dose [15,16,17,18].…”

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

“…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.…”

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

“…During the last years, the authors have performed dose surveys in various region of Morocco in conventional radiography and computed tomography (CT) (Chahboub et al, 2016;Aabid, Semghouli, Choukri, & Hakam, 2016;Semghouli et al, 2017;Semghouli, Amaoui, & Maamri, 2015). Moreover, their responsibility in optimization, dose surveys furnished patient medical radiation exposure data that are requested for the adjustment of provincial, regional or national diagnostic reference levels.…”

“…To comprehend practices at the national level, it is mandatory to specify the nature, frequency and population dose from medical X-ray examinations (Chahboub et al, 2016;Aabid et al, 2016;Semghouli et al, 2017) for all Moroccan provinces and cities (Semghouli et al, 2015). This study was performed to evaluate medical exposure and risk estimation during routine radio-diagnostic examinations in Agadir City during the year 2012.…”