Mounir AM, Elmokadem AH, Saleh GAH, El-Morsy A, Abd El-Raouf GH. Role of metal artifact reduction software in computed tomography angiography of lower limb metallic prosthesis: A retrospective study. World J Radiol 2026; 18(3): 118119 [DOI: 10.4329/wjr.v18.i3.118119]
Corresponding Author of This Article
Ahmad M Mounir, MD, PhD, Associate Professor, Department of Radiology, Mansoura University, El Gomhouria Street, Mansoura 35516, Egypt. ahmedmounir@mans.edu.eg
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Radiology, Nuclear Medicine & Medical Imaging
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Retrospective Study
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Mar 28, 2026 (publication date) through Mar 26, 2026
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Publication Name
World Journal of Radiology
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1949-8470
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Mounir AM, Elmokadem AH, Saleh GAH, El-Morsy A, Abd El-Raouf GH. Role of metal artifact reduction software in computed tomography angiography of lower limb metallic prosthesis: A retrospective study. World J Radiol 2026; 18(3): 118119 [DOI: 10.4329/wjr.v18.i3.118119]
World J Radiol. Mar 28, 2026; 18(3): 118119 Published online Mar 28, 2026. doi: 10.4329/wjr.v18.i3.118119
Role of metal artifact reduction software in computed tomography angiography of lower limb metallic prosthesis: A retrospective study
Ahmad M Mounir, Ali H Elmokadem, Gehad A H Saleh, Ahmed El-Morsy, Ghada H Abd El-Raouf
Ahmad M Mounir, Ali H Elmokadem, Gehad A H Saleh, Ghada H Abd El-Raouf, Department of Radiology, Mansoura University, Mansoura 35516, Egypt
Ahmed El-Morsy, Faculty of Medicine, Department of Diagnostic and Interventional Radiology, Mansoura University, Mansoura 35511, Egypt
Author contributions: Mounir AM, Elmokadem AH, Saleh GAH, El-Morsy A, Abd El-Raouf GH participated in data analysis and interpretation, critical manuscript revision, and approved the final version; Mounir AM and Abd El-Raouf GH were primarily responsible for study conception and design, data collection, and manuscript drafting.
Institutional review board statement: The study protocol was reviewed and approved by Medical Research Ethics Committee of Mansoura Faculty of Medicine Mansoura University (Approval No. R.22.11.1945).
Informed consent statement: In accordance with institutional policy and national regulations, the Board formally waived the requirement for obtaining written informed consent from individual participants due to the retrospective nature of the study, use of existing imaging data, and anonymization of all patient identifiers.
Conflict-of-interest statement: All the authors report no relevant conflicts of interest for this article.
Data sharing statement: The data that support the findings of this study are not publicly available due to patient privacy concerns and institutional policy. Requests for data may be directed to the corresponding author.
Corresponding author: Ahmad M Mounir, MD, PhD, Associate Professor, Department of Radiology, Mansoura University, El Gomhouria Street, Mansoura 35516, Egypt. ahmedmounir@mans.edu.eg
Received: December 31, 2025 Revised: January 10, 2026 Accepted: January 16, 2026 Published online: March 28, 2026 Processing time: 85 Days and 13.7 Hours
Core Tip
Core Tip: Single-energy metal artifact reduction (SEMAR) is a computed tomography (CT) algorithm designed to reduce metal-induced artifacts while preserving vessel contrast. In this retrospective single-center study, lower limb CT angiography examinations in 22 patients with metallic fixation prostheses were reconstructed with and without SEMAR to assess arterial signal-to-noise ratio, contrast-to-noise ratio, artifact burden, and diagnostic confidence. SEMAR significantly reduced metal artifacts, improved signal-to-noise ratio and overall image quality, and restored periprosthetic arterial visualization to levels comparable with the contralateral reference limb, without compromising vascular contrast, thereby enhancing the diagnostic performance of lower limb CT angiography in this challenging patient population.
