Detailed CT Dosimetry in 4 Moroccan Hospitals as a Preparation for the Development of National DRLs

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Ou Saada Imane; Douama Sanae; Bouzekraoui Youssef; Bosmans Hilde; Cockmartin Lesley; Campoleoni Mauro; Bentayeb Farida

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Journal Paper

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Journal: IRANIAN JOURNAL OF MEDICAL PHYSICS Year:2022 | Volume:19 | Issue:4 Page(s): 241-249

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Title

Detailed CT Dosimetry in 4 Moroccan Hospitals as a Preparation for the Development of National DRLs

Author(s)

Keywords

Volume Computed

Tomography Dose Index (CTDIvol)

Dose Length Product (DLP)

Diagnostic Reference Levels (DRLs)

Head

Chest

Abdomen-Pelvis

Abstract

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 abdomenpelvis procedures and proposes effective doses for Chest CT examinations in adult patients. The study shows that the results are conforming to the literature.

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APA: Copy

Ou Saada, Imane, Douama, Sanae, Bouzekraoui, Youssef, Bosmans, Hilde, Cockmartin, Lesley, Campoleoni, Mauro, & Bentayeb, Farida. (2022). Detailed CT Dosimetry in 4 Moroccan Hospitals as a Preparation for the Development of National DRLs. IRANIAN JOURNAL OF MEDICAL PHYSICS, 19(4), 241-249. SID. https://sid.ir/paper/1038305/en

Vancouver: Copy

Ou Saada Imane, Douama Sanae, Bouzekraoui Youssef, Bosmans Hilde, Cockmartin Lesley, Campoleoni Mauro, Bentayeb Farida. Detailed CT Dosimetry in 4 Moroccan Hospitals as a Preparation for the Development of National DRLs. IRANIAN JOURNAL OF MEDICAL PHYSICS[Internet]. 2022;19(4):241-249. Available from: https://sid.ir/paper/1038305/en

IEEE: Copy

Imane Ou Saada, Sanae Douama, Youssef Bouzekraoui, Hilde Bosmans, Lesley Cockmartin, Mauro Campoleoni, and Farida Bentayeb, “Detailed CT Dosimetry in 4 Moroccan Hospitals as a Preparation for the Development of National DRLs,” IRANIAN JOURNAL OF MEDICAL PHYSICS, vol. 19, no. 4, pp. 241–249, 2022, [Online]. Available: https://sid.ir/paper/1038305/en

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