Ces radiol. 2025, 79(3):208-217 | DOI: 10.55095/CesRadiol2025/022

Computed Tomography Technicians and Radiographers' Competency toward different CT Exposure parameters: A cross-sectional StudyOriginal article

Haneen E. Abuanzeh1, Ayman M. Al-Qaaneh1, 2
1 Faculty of Allied Medical Sciences, Al-Balqa Applied University (BAU), Al-Salt, Jordan
2 Department of Pharmaceutical Technology, Faculty of Pharmacy, Jordan University of Science and Technology (JUST), Irbid, Jordan Correspondence address:

Objective: To assess the level of knowledge of radiographers and CT technicians regarding examination dose, image quality, and the ability to balance between these parameters and their associated factors.

Methods: A descriptive cross-sectional study was conducted among CT radiographers and technicians in Jordan from May to June 2024 using a validated, structured online questionnaire. The tool included both self-assessment and objectively scored knowledge sections. Knowledge scores were compared across demographic and professional variables using non-parametric tests.  Results: A total of 197 participants were included in the analysis. More than half were CT technicians, and the majority worked in private hospitals or centers (53.3%). Approximately 50% held a bachelor’s degree in radiography, and 82.2% had attended specialized training after graduation. Participants with a master’s degree, 11–20 years of experience, and those aged 41–50 years demonstrated significantly higher objective knowledge scores, particularly in image quality and total knowledge domains. Attendance at specialized courses was also significantly associated with better performance.

Conclusion: Radiographers and CT technologists in Jordan demonstrated good knowledge of CT exposure parameters, with higher education, experience, and specialized training linked to better performance. While overall knowledge was satisfactory, targeted improvements are needed to bridge specific knowledge gaps and promote consistent excellence in clinical CT practice. Structured training and regular competency assessments are recommended to enhance practice and patient safety.

Keywords: computed tomography, radiation dose, image quality, knowledge.

Received: August 19, 2025; Revised: August 19, 2025; Accepted: August 31, 2025; Published: December 1, 2025  Show citation

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Abuanzeh HE, Al-Qaaneh AM. Computed Tomography Technicians and Radiographers' Competency toward different CT Exposure parameters: A cross-sectional Study. Ces radiol. 2025;79(3):208-217. doi: 10.55095/CesRadiol2025/022.
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    References

    1. . Assili S. A Review of Tomographic ReconstructionTechniques for Computed Tomography. arxiv logo. Medical Physics 2018. Available from: https://doi.org/https://doi.org/10.48550/arXiv.1808.09172 Go to original source...
    2. . Oglat AA. Assessment of Diagnostic Imaging Sector in Public Hospitals in Northern Jordan. Healthcare 2022; 10(6): 1136. Go to original source... Go to PubMed...
    3. . Chamberlin JH, Baruah D, Smith C, et al. Cardiac Computed Tomography Protocols in Structural Heart Disease: A State-of-the-Art Review. Seminars in Roentgenology 2024; 59(1): 7-19. Available from: https://doi.org/https://doi.org/10.1053/j.ro.2023.12.001 Go to original source... Go to PubMed...
    4. . Irsal M, Mukhtar AN, Winarno G, et al. The Effect of Kilovoltage and Milliampere-Second Parameters on CT Number: Study Phantom Quality Control CT Scan. SANITAS J. Teknol. dan Seni Kesehat 2022; 13(2): 237-244. Go to original source...
    5. . Abdulkareem NK, Hajee SI, Hassan FF, et al. Investigating the slice thickness effect on noise and diagnostic content of single-source multi-slice computerized axial tomography. J Med Life 2023; 16(6): 862-867. Available from: https://doi.org/10.25122/jml-2022-0188 Go to original source... Go to PubMed...
    6. . Mahmoudi F, Naserpour M, Farzanegan Z, et al. Evaluation of radiographers' and CT technologists' knowledge regarding CT exposure parameters. Polish Journal of Medical Physics and Engineering 2019; 25(1): 43-50. Available from: https://doi.org/10.2478/pjmpe-2019-0007 Go to original source...
    7. . Sodhi KS, Krishna S, Saxena AK, et al. Clinical application of 'Justification' and 'Optimization' principle of ALARA in pediatric CT imaging: How many children can be protected from unnecessary radiation? European Journal of Radiology 2015; 84(9): 1752-1757. Available from: https://doi.org/https://doi.org/10.1016/j.ejrad.2015.05.030 Go to original source... Go to PubMed...
    8. . Berrington de Gonzalez A, Pasqual E, Veiga L. Epidemiological studies of CT scans and cancer risk: the state of the science. British Journal of Radiology 2021; 94(1126). Available from: https://doi.org/10.1259/bjr.20210471 Go to original source... Go to PubMed...
    9. . Mallinson MA, Hardy M, Scally AJ. Developing CT workforce competencies: What knowledge and skills should we expect of an early career radiographer? Radiography 2024; 30(5): 1355-1362. Available from: https://doi.org/https://doi.org/10.1016/j.radi.2024.07.010 Go to original source... Go to PubMed...
    10. . Raman SP, Mahesh M, Blasko RV, et al. CT Scan Parameters and Radiation Dose: Practical Advice for Radiologists. Journal of the American College of Radiology 2013; 10(11): 840-846. Available from: https://doi.org/https://doi.org/10.1016/j.jacr.2013.05.032 Go to original source... Go to PubMed...
    11. . Hawarihewa PM, Satharasinghe D, Amalaraj T, et al. An assessment of Sri Lankan radiographer's knowledge and awareness of radiation protection and imaging parameters related to patient dose and image quality in computed tomography (CT). Radiography 2022; 28(2): 378-386. Available from: https://doi.org/https://doi.org/10.1016/j.radi.2021.10.010 Go to original source... Go to PubMed...
    12. . Al Mohammad B, Alakhras MM, Reed W. Assessing the knowledge of CT radiographers regarding how CT parameters affect patient dose and image quality. European Journal of Radiology 2023; 166: 111023. Go to original source... Go to PubMed...
    13. . Alzyoud K, Al-Murshedi S, England A. Diagnostic Reference Levels of Radiographic and CT Examinations in Jordan: A Systematic Review. Health Physics. 2024; 126(3): 156-162. Available from: https://doi.org/10.1097/hp.0000000000001778 Go to original source... Go to PubMed...
    14. . Rawashdeh M, McEntee MF, Zaitoun M, et al. Knowledge and practice of computed tomography exposure parameters amongst radiographers in Jordan. Comput Biol Med. 2018; 102: 132-137. Available from: https://doi.org/10.1016/j.compbiomed.2018.09.020 Go to original source... Go to PubMed...
    15. . Kada S. Knowledge of CT exposure parameters among Norwegian student radiographers. BMC Medical Education 2020; 20(1): 302. Available from: https://doi.org/10.1186/s12909-020-02233-y Go to original source... Go to PubMed...
    16. . Aldahery ST. Assessment of radiographers' knowledge about radiation doses and DRLs in computed tomography departments in Jeddah, Saudi Arabia: A cross-sectional study. Saudi Pharm J. 2023; 31(11): 101820. Available from: https://doi.org/10.1016/j.jsps.2023.101820 Go to original source... Go to PubMed...
    17. . Kazemi Z, Hajimiri K, Saghatchi F, et al. Assessment of the knowledge level of radiographers and CT technologists regarding computed tomography parameters in Iran. Radiation Medicine and Protection 2023; 4(1): 60-64. Available from: https://doi.org/https://doi.org/10.1016/j.radmp.2023.01.002 Go to original source...
    18. . Al Mohammad B, Alakhras MM, Reed W. Assessing the knowledge of CT radiographers regarding how CT parameters affect patient dose and image quality. Eur J Radiol. 2023; 166: 111023. Available from: https://doi.org/10.1016/j.ejrad.2023.111023 Go to original source... Go to PubMed...
    19. . Alhorani Q, Al-Ibraheem A, Rawashdeh M, et al. Investigating knowledge of DRLs, image quality and radiation dose in PET/CT and CT imaging among medical imaging professionals. Heliyon 2024; 10(9): e30030. Available from: https://doi.org/10.1016/j.heliyon.2024.e30030 Go to original source... Go to PubMed...
    20. . Rehani MM, Brady Z. Contemporary issues in radiation protection in medical imaging: introductory editorial. Br J Radiol. 2021; 94(1126): bjr20219004. Available from: https://doi.org/10.1259/bjr.20219004 Go to original source... Go to PubMed...
    21. . Hawarihewa PM, Satharasinghe D, Amalaraj T, et al. An assessment of Sri Lankan radiographer's knowledge and awareness of radiation protection and imaging parameters related to patient dose and image quality in computed tomography (CT). Radiography (London) 2022; 28(2): 378-386. Available from: https://doi.org/10.1016/j.radi.2021.10.010 Go to original source... Go to PubMed...

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