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. 2024 Feb 21;53(9):1751–1760. doi: 10.1007/s00256-024-04597-4

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© The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 5 — Comparison of a 1.0-T small-bore extremity system with a standard 1.5 T large-bore MRI for assessment of knee osteoarthritis. A Standard 1.5-T proton density-weighted fat-suppressed image shows small subchondral bone marrow lesions (BMLs) at the central medial femur and the anterior medial tibia (arrows). In addition, there is a horizontal oblique degenerative tear of the posterior horn of the medial meniscus (arrowhead). B At 1.0-T extremity MRI, BMLs (arrows) and tear (arrowhead) are visualized with similar image quality. C Axial 1.5-T proton density-weighted fat-suppressed image shows a small BML at the lateral patella (arrow) and joint effusion (asterisk). D Axial 1.0-T image shows BML (arrow) and effusion (asterisk) in similar fashion. In addition, there is a small medial patellar plica (arrowhead). TA: 3:53 min (A), 4:44 min (B), 2:45 min (C), 2:59 min (D)