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Iranian Journal of Medical Physics، جلد ۱۹، شماره ۴، صفحات ۲۴۱-۲۴۹
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عنوان انگلیسی Detailed CT Dosimetry in 4 Moroccan Hospitals as a Preparation for the Development of National DRLs
چکیده انگلیسی مقاله Introduction: Diagnostic reference levels (DRLs) can prevent excessive, unnecessary radiation exposure to patients and reduce the dose variation during different practices. This study aims to establish local DRLs for computed tomography (CT) procedures corresponding to Head, Chest, and Abdomen-Pelvis examinations (single acquisition) in Moroccan hospitals.Material and Methods: A total of 1917 diagnostic CT examinations were included in this study: head, chest, abdomen–pelvis, lumbar, cervical, chest-abdomen–pelvis (CAP), and scanopelvimetry. Firstly, we analyzed the CT dose indicators in terms of the Volume computed tomography dose index (CTDIvol) and the dose length product (DLP) of all the examinations collected. Local diagnostic reference levels were proposed just for the head, thorax, and abdomen-pelvis due to the lack of data for the other examinations. Furthermore, we calculated the effective dose for chest examination using CT-expo software to estimate the effective and organ dose for chest CT.Results: The estimated local DRLs expressed as the 3rd quartile using CTDIvol were 48 mGy, 14 mGy, and 12 mGy for the head, chest, and abdomen-pelvis, respectively, and 986 mGy.cm, 496 mGy.cm, and 651 mGy.cm for DLP, respectively. Moreover, the proposed average effective dose for chest CT examinations was 6,3 mSv.Conclusion: This work establishes local DRLs for CTDIvol and total DLP for head, chest, and abdomen-pelvis procedures and proposes effective doses for chest CT examinations in adult patients. The study shows that the results are conforming to the literature.
کلیدواژه‌های انگلیسی مقاله Volume Computed Tomography Dose Index (CTDIvol) Dose Length Product (DLP) Diagnostic Reference Levels (DRLs) Head Chest Abdomen, Pelvis
نویسندگان مقاله | imane ou-saada
Laboratory of high energy physics Modelisation Simulation, Faculty of Sciences, University Mohammed V, Rabat, Morocco.


| sanae douama
Laboratory of high energy physics Modelisation Simulation, Faculty of Sciences, University Mohammed V, Rabat, Morocco.


| Youssef Bouzekraoui
Hassan First University of Settat, High Institute of Health Sciences, Laboratory of Sciences and Health Technologies, Settat, Morocco


| Hilde Bosmann
KU Leuven, Faculty of Medicine, Department of Imaging and Pathology, Medical Physics and Quality Assessment, Belgium.


| Lesley cockmartin
Universitair Ziekenhuis Leuven | UZ Leuven · Department of Radiology, Belgium.


| Mauro campoleoni
Associazione Italiana di Fisica Medica (AIFM), Milan, Italy


| FARIDA BENTAYEB
Laboratory of high energy physics Modelisation Simulation, Faculty of Sciences, University Mohammed V, Rabat, Morocco.
نشانی اینترنتی https://ijmp.mums.ac.ir/article_18724.html
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Paper
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