48 H. Khajmi et al.: Radioprotection 2025, 60( 1), 44 – 49
The abdominal CTDI vol and DLP ranged from 5 mGy to 12 mGy, with a mean of 7 mGy, and from 121 mGy. cm to 1021 mGy. cm, with a mean of 454 mGy. cm, respectively. The CTDI vol at the 75th percentile for abdomen CT in this work was 9 mGy. With the exception of Sudan in 2018( Bashier et al., 2018), all internationally reported numbers were higher. The DRL of DLP in abdomen CT was 788 mGy. cm. It is similar to that recommended by ICRP( 2011), but showed the greatest difference when compared with other studies. It was 65.7 % greater than that reported in Sudan in 2018( Bashier et al., 2018), 44 % larger than that seen in China in 2020( Li et al., 2020), 41.6 % more elevated than that mentioned in the UK during 2014( Shrimpton et al., 2014), and 20 % more than that was registered in French through 2018( Roch et al., 2018), but was lower than that of the USA in 2015( 9.1 %)( Smith-Bindman et al., 2015), Japan in 2020( 10.1 %)( Kanda et al., 2021), Ethiopia in 2021( 100 %)( Zewdu et al., 2021) and French in 2022. We notice that, Ethiopia in 2021( Zewdu et al., 2021) have the maximum DRL quantities.
In the Med VI UHC of Marrakech( Morocco), our recent analysis offers the first hospital-based DRL for head, chest to pelvis, chest, and abdomen 16-Multislice CT exams for adult’ s patients. The 75th percentile of the DLP of the head and chest CT were greater according to the study’ s findings than in other, internationally published research. Contrarily, except for the USA in 2015( Smith-Bindman et al., 2015), Japan in 2020( Kanda et al., 2021), Ethiopia in 2021( Zewdu et al., 2021), the abdomen CT rate was above than those observed in UK in 2015( Shrimpton et al., 2014), Sudan in 2018( Bashier et al., 2018), China in 2020( Li et al., 2020) and in French in 2018( Roch et al., 2018). Japan 2020( Kanda et al., 2021) has the largest DLP in CAP CT.
The 75th percentile dose measures for these procedures are, however, lower or greater than those published worldwide. In fact, compared to CT examinations conducted in other nations, the high doses and dosage variability seen on the DRL during this analysis seem to be mostly impacted by technological considerations as well as changes in the protocols employed.
Numerous actions must be taken in order to reduce the amount of radiation patients receive, including: First, offer realtime automatic exposure control technology during scanning. Second, lower radiation levels by using the iterative reconstruction process. Thirdly, the education and training of CT technicians should be improved to create a more standardised workflow for CTscans, including patient preparation prior to the examination and the setting of scan parameters to precisely formulate the scanning plan and prevent the need for repeat scans because of operational errors. Fourthly, to get the lowest radiation dose without compromising picture quality or patient care, a coordinated effort by radiologists, technologists, and medical physicists must be used. Finally, quality assurance of CT equipment is also necessary.
4 Conclusion
This study, carried out in the computed tomography unit of the radiology section of the Arrazi Hospital of the Mohammed VI University Hospital Centre in Marrakech, assessed the current practice of this unit. This research focuses on the estimation of the DRL in adult CT scans.
The results of this exercise demonstrated that the predicted DRL for the head and chest scans were greater than the guidelines suggested by the literature. Even if DRL for abdomen CT was not more than the international levels, it can be reduced by adequate training of radiographers. We believe that the Med VI UHC in Marrakech has to optimize its radiological practice in CT.
Acknowledgments
We are grateful to the students at the Higher Institute of Nursing Professions and Health Technics, as well as the radiology technicians at the Mohammed VI University Hospital Center in Marrakech, Morocco’ s Arrazi Hospital, for their assistance with collecting the information.
Funding
The study’ s authors did not receive any funding for it. Conflicts of interest
There is no conflict of interest for this paper.
Data availability statement
The authors do not have permission to share data.
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