Connaissances des Professionnels de Santé sur les Paramètres d’Irradiation au Scanner dans les Centres d’Imagerie Médicale du Nord Cameroun
Health Professionals' Knowledge of CT Irradiation Parameters in Medical Imaging Centres of Northern Cameroon
DOI :
https://doi.org/10.5281/hra.v2i9.6014Mots-clés :
Evaluation, connaissances, paramètres, irradiation, Scanner, Nord CamerounRésumé
RESUME
Introduction. Dans le Nord Cameroun, La formation à l’utilisation des appareils de scanner est principalement dispensée lors de l'installation initiale effectuée par les fournisseurs d'équipement, formation centrée sur la finalité des examens de routine, et rarement sur l’optimisation des doses. L’objectif de notre étude était d’évaluer le niveau de connaissance des utilisateurs de scanner des hôpitaux publics et privés de la partie septentrionale du Cameroun sur les paramètres influençant l’irradiation lors de la réalisation de cet examen. Méthodologie. Il s’agissait d’une étude transversale et descriptive menée du 8 au 14 Avril 2024, portant sur tout le personnel technique en charge des examens scanographiques dans les services d’imagerie des hôpitaux publics et privés de la partie septentrionale du Cameroun. Résultats. Nous avons enregistré 30 participants. L’âge moyen des participants était de 31,63 ans pour un sex ratio de 1,30. Les tranches d’âges les plus représentées étaient celles de 26 à 30 ans (26,7%) et de 31 à 35 ans (43,3%). Les titulaires de Master en Radiologie et imagerie médicale étaient les plus représentés (53,3%). L’expérience moyenne des participants dans la profession et dans la réalisation des examens de scanner était de 4,32 ans et 3,81 ans respectivement. Plusieurs des participants notamment 9(30%) et 10(33,3%) avait une expérience professionnelle courte (1 à 3 ans) dans la profession et dans la réalisation des scanners. Le taux de participants ayant répondu correctement aux questions relatives aux niveaux de référence diagnostic en scanner était de 30%. Les scores les plus élevés étaient obtenu chez les participants ayant au moins quatre ans d’ancienneté. Conclusion. Les scores les plus faibles étaient enregistrés sur les questions concernant le logiciel de modulation automatique du courant du tube, le milliampérage, le pas de l’hélice et la reconstruction des images.
ABSTRACT
Introduction. In northern Cameroon, training in the use of CT equipment is provided mainly during initial installation by equipment suppliers, with training focused on the purpose of routine examinations and rarely on dose optimisation. The aim of our study was to assess the level of knowledge of CT equipment users in public and private hospitals in the Northern part of Cameroon regarding the parameters influencing irradiation during this examination. Methodology. This was a cross-sectional, descriptive study conducted from 8 to 14 April 2024, involving all technical staff in charge of CT examinations in the imaging departments of public and private hospitals in the northern part of Cameroon. Results. We studied 30 participants. Their mean age was 31.63 years, with a sex ratio of 1.30. The age groups most represented were 26 to 30 years (26.7%) and 31 to 35 years (43.3%). Master's degree holders in Radiology and Medical Imaging were most represented (53.3%). The average experience period of the participants in the profession and in performing CT examinations was 4.32 years and 3.81 years respectively. Many of the participants, particularly 9 (30%) and 10 (33.3%), had short professional experience (1 to 3 years) in the profession and in performing scans. The rate of participants who correctly answered the questions relating to diagnostic reference levels in CT scanning was 30%. The highest scores were obtained by participants with at least four years' professional experience. Conclusion. The lowest scores were recorded for questions relating to automatic tube current modulation software, milliamperage, helix pitch and image reconstruction.
Références
Mannudeep K. Kalra, Aaron D. Sodickson, William W. Mayo-Smith. 2015. CT Radiation : Key Concepts for Gentle and Wise Use. radiographics.rsna.org 35 :1706–1721 DOI : 10.1148/rg.2015150118.
Bos D, Guberina N, Zensen S, Opitz M, Forsting M, Wetter A: Radiation exposure in computed tomography. Dtsch Arztebl Int 2023; 120: 135–41. DOI: 10.3238/arztebl.m2022.0395.
Moifo, B. , Tapouh, J. , Guena, M. , Ndah, T. , Samba, R. and Simo, A. (2017) Diagnostic Reference Levels of Adults CT-Scan Imaging in Cameroon: A Pilot Study of Four Commonest CT-Protocols in Five Radiology Departments. Open Journal of Medical Imaging, 7, 1-8. doi: 10.4236/ojmi.2017.71001.
Willi A. Kalender, Stefanie Buchenau, Paul Deak, Markus Kellermeier, Oliver Langner, Marcel van Straten, Sabrina Vollmar, Sylvia Wilharm. Technical approaches to the optimisation of CT. Physica Medica (2008) 24,71e79.
Hussain M Almohiy , Khalid Hussein, Mohammed Alqahtani, Elhussaien Elshiekh , Omer Loaz , Azah Alasmari, Mohamed Saad , Mohamed Adam , Emad Mukhtar, Magbool Alelyani, Madshush Alshahrani, Nouf Abuhadi, Ghazi Alshumrani, Alaa Almazzah, Haney Alsleem, Nadiayah Almohiy , Amgad Alrwaili, Mohammad Mahtab Alam, Abdullah Asiri, Mohammed Khalil, Mohammad Rawashdeh, Charbel Saade. Radiologists’ Knowledge and Attitudes towards CT Radiation Dose and Exposure in Saudi Arabia—A Survey Study. Med. Sci. 2020, 8, 27; doi:10.3390/medsci8030027]
Fotso Kamdem Eddy, Samba Odette Ngano, Fotue Alain Jervé, Abogo Serge. Radiation dose evaluation of pediatric patients in CT brain examination: multi-center study. Sci Rep 11, 4663 (2021). https://doi.org/10.1038/s41598-021-84078-z.
Muhammad K. Abdulkadir, Albert D. Piersson, Goni M. Musa, Sadiq A. Audu, Auwal Abubakar, Basirat Muftaudeen, Josiah E. Umana. Assessment of diagnostic reference levels awareness and knowledge amongst CT radiographers. Egyptian Journal of Radiology and Nuclear Medicine (2021) 52:67 https://doi.org/10.1186/s43055-021-00444-x.
Lynda Johnson. (2017) The Role of the Radiographer in Computed Tomography Imaging. Society of Radiographers (https://www.sor.org). ISBN: 978-1-909820-155
IAEA, 2022. Radioprotection et sûreté radiologique dans les applications médicales des rayonnements ionisants, Guide de sûreté particulier Nº SSG-46, Pp. 46-49.
(IAEA (2001) Radiological protection for medical exposure to ionizing radiation, Safety Standards series n° rs-g-1.5, IAEA, Vienna)
Zahra Kazemi , Khadijeh Hajimiri , Faranak Saghatchi, Mikaeil Molazadeh, Hamed Rezaeejam. (2023) Assessment of the knowledge level of radiographers and CT technologists regarding computed tomography parameters in Iran. Radiation Medicine and Protection 4 (2023) 60–64. https://doi.org/10.1016/j.radmp.2023.01.002.
S. J. Foley, M. G. Evanoff, L. A. Rainford. (2013) A questionnaire survey reviewing radiologists’ and clinical specialist radiographers’ knowledge
of CT exposure parameters. Insights Imaging 4:637–646 DOI 10.1007/s13244-013-0282-4.
Mohamed M. Abuzaid, Wiam Elshami, Zarmeena Noorajan, Simaa Khayal,
Abdelmoneim Sulieman (2020). Assessment of the professional practice knowledge of computed tomography preceptors. European Journal of Radiology Open 7 (2020) 100216. https://doi.org/10.1016/j.ejro.2020.01.005.
Mahmoudi F, Naserpour M, Farzanegan Z, (2019). Evaluation of radiographers' and CT technologists' knowledge regarding CT exposure parameters. Pol J Med Phys Eng. 2019;25(1):43–50. https://doi.org/10.2478/pjmpe-2019-0007.
Siva P. Raman, Mahadevappa Mahesh,Robert V. Blasko, Elliot K. Fishman (2013). CT Scan Parameters and Radiation Dose: Practical Advice for Radiologists. J Am Coll Radiol 2013;10:840-846. American College of Radiology
Yekpe Ahouansou Patricia, Adjadohoun Sonia, Legonou Christelle, Adjovi Boris, Ngamo Gabriel, Savi de Tove Kofi-Mensa, Biaou Olivier, Boco Vicentia(2020). État des lieux de la radioprotection du personnel de services d’imagerie médicale du sud Benin en 2019. J Afr Imag Méd 2020; 12(4):213-219).
ACR (2011) ACR practice guidelines for performing and interpreting
diagnostic computed tomography. American College of Radiology,
Reston
Mohd Hafizi Mahmud, Mohd Amirul Tajuddin, Saidatun Nafisah Ismail, Qusay Taisir Nayyef (2023). Knowledge and Practices of Computed Tomography Exposure Parameters among Radiographers. 11th ASIAN Conference on Environment-Behaviour Studies (AcE-Bs2023), Primula Beach Hotel, Kuala Terengganu, Malaysia, 14-16 Jul 2023, E-BPJ 8(25), Jul 2023 (pp.241-246)
Mohammad Rawashdeha, Mark F. McEntee, Maha Zaitoun, Mostafa Abdelrahman, Patrick Brennan, Haytham Alewaidat, Sarah Lewis, Charbel Saade (2018). Knowledge and practice of computed tomography exposure parameters
amongst radiographers in Jordan. Computers in Biology and Medicine 102 132–137. https://doi.org/10.1016/j.compbiomed.2018.09.020.
Wahyudi Ifani, Bambang Soeprijanto, J. Moekono, Nur Ainy Fardana (2021). Evaluation of Radiographers Experience and Knowledge Related to Estimation, Radiation Dose Comparation, and CT Parameters in Kota Medan, Indonesia. Indian Journal of Forensic Medicine & Toxicology, July-September 2021, Vol. 15, No. 3
Valentin J. (2007)Managing patients dose in multi-detector computed tomography (MDCT). ICRP Publication 102. Ann ICRP. 2007;37(1):1–79. https://doi.org/10.1016/j.icrp.2007.09.001.
Soderberg M, Gunnarsson M (2010) Automatic exposure control in
computed tomography—an evaluation of systems from different
manufacturers. Acta Radiol 51:625–634
Fotso KE, Samba ON, Abogo S, Tambe J, Mballa AJC, et al. (2021) Assessment of the Knowledge of CT scanner Operators on the Use of Dose Reduction Software Called Automatic Exposure Control (AEC) during a CT scan. J Clin Pediatr Vol.6 No.11: 15
J Gudjonsdottir J, Svensson JR, Campling S, Brennan PC, Jonsdottir B (2009). Efficient use of automatic exposure control systems in computed tomography requires correct patient positioning. Acta Radiol. 2009 Nov;50(9):1035-41. doi: 10.3109/02841850903147053. PMID: 19863414.
Manoj Diwakar, Manoj Kumar (2018). A review on CT image noise and its denoising. Biomedical Signal Processing and Control 42 73–88.
Lv P, Zhou Z, Liu J, et al (2019). Can virtual monochromatic images from dual-energy CT replace low-kVp images for abdominal contrast-enhanced CT in small-and mediumsized patients? Eur Radiol. 2019;29(6):2878–2889. https://doi.org/10.1007/s00330-018-5850-z.
Seeram E, Davidson R, Bushong S, et al (2016). Optimizing the exposure indicator as a dose management strategy in computed radiography. Radiol Technol. 2016 ;87(4): 380–391.
Mahesh M, Scatarige JC, Cooper J, Fishman EK(2001). Dose and pitch relationship for a particular multislice CT scanner. AJR Am J Roentgenol. 2001 Dec;177(6):1273-5. doi: 10.2214/ajr.177.6.1771273. PMID: 11717063.
I. Bricault, La reconstruction itérative en scanner : pourquoi ? Comment ça marche ? Journal d'imagerie diagnostique et interventionnelle 2018;1:76–80. https://doi.org/10.1016/j.jidi.2018.01.001.
Abdulkadir, M.K., Piersson, A.D., Musa, G.M. et al (2021). Assessment of diagnostic reference levels awareness and knowledge amongst CT radiographers. Egypt J Radiol Nucl Med 52, 67 https://doi.org/10.1186/s43055-021-00444-x.
France. Ministère du Travail, de l’Emploi et de la Santé. Arrêté du 24 octobre 2011 relatif aux niveaux de référence diagnostiques en radiologie et en médecine nucléaire, Journal officiel, 14 janvier 2012-Texte 22 sur 147.
Tonkopi E, Duffy S, Abdolell M, Manos D (2017) Diagnostic reference levels and monitoring practice can help reduce patient dose from CT examinations. Am J Roentgenol 208:1073–1081
Téléchargements
Publié-e
Comment citer
Numéro
Rubrique
Licence
(c) Tous droits réservés Alapha Zilbinkai Florent, Kuiate David, Neossi Guena Mathurin, Mohamadou Aminou, Zeh Odile Fernande 2024
Cette œuvre est sous licence Creative Commons Attribution - Pas de Modification 4.0 International.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License CC BY-NC-ND 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work
