Email this article 
Post a Comment 
Estimated radiation exposure from medical imaging for patients of radiology service of Al Faraby Hospital, Oujda Morocco
Abstract
Purpose: To evaluate the effective dose received per radiological examination per patient and the additional cancer risk factor in the Radiological Service of Al Faraby Hospital in 2012.
Methods: From the number of radiological procedures (NX) made in 2012 in the radiology service of Al Faraby Hospital and the average effective dose DEX associated with each type of act exam X, it is possible to calculate the effective dose collective [S =∑ DEX * NX]. 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.
Keywords
Full Text:
PDFReferences
Gale RP, Lax E, Hoffman FO. On Radiation and Cancer Risk. The ASCO POST. 2013; 4.
De Roquefeuil L, Studer A, Neumann A, Merlière Y. The general sample of benificiaries representativeness. Scope and limits Practice and Organisation of Care. 2009; 40: 213-23.
Hart D, Wall BF. Radiation exposure of the UK populations from medical and dental X-rays examinations. Report NRPB – W4; 2002; 33. Available from https://inis.iaea.org/search/searchsinglerecord.aspx?recordsFor=SingleRecord&RN=33029624#
Mettler FA Jr, Huda W, Yoshizumi TT, Mahesh M. Effective doses in radiology and diagnostic nuclear medicine: a catalog. Radiology. 2008; 248:254-63.
Bedetti G, Botto N, Andreassi MG, et al. Cumulative patient effective dose in cardiology. Br J Radiol. 2008; 81: 699-705.
McParland BJ. A study of patient radiation doses in interventional radiological procedures. Br J Radiol. 1998;71:175-85.
Etard C, Sinno-Tellier S, Aubert B. Medical ionising radiation exposure of the French population in 2007 – IRSN Report Institute of Health Surveillance June 2010 ISSN : 1958-9719.
European guidance on estimating population doses from medical X-ray procedures, Radiation protection. Avialble from http://www.itn.pt/projs/ddm2-portugal/rp154.pdf
Mike Hanley, Jay Koonce, Marques Bradshaw. X ray risk: Promoting responsible imaging through patient and provider education. Available from http://xrayrisk.com/
Semghouli S, Amaoui B, EL Fahssi M. Estimate of the average effective dose received by radiological exam and by patient at the diagnostic radiology service of Hassan II Hospital Agadir during 2012. 4th African Regional IRPA congress (AFRIRPA04), Rabat, Morocco.
DOI: http://dx.doi.org/10.14319/ijcto.33.25
This work is licensed under a Creative Commons Attribution 3.0 License.
International Journal of Cancer Therapy and Oncology (ISSN 2330-4049)
© International Journal of Cancer Therapy and Oncology (IJCTO)
To make sure that you can receive messages from us, please add the 'ijcto.org' domain to your e-mail 'safe list'. If you do not receive e-mail in your 'inbox', check your 'bulk mail' or 'junk mail' folders.
Number of visits since October, 2013