Ultrashort echo time magnetization transfer imaging of knee cartilage and meniscus after long-distance running
Objective To assess the detection of changes in knee cartilage and meniscus of amateur marathon runners before and after long-distance running using a 3D ultrashort echo time MRI sequence with magnetization transfer preparation (UTE-MT). Methods We recruited 23 amateur marathon runners (46 knees) in...
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Published in | European radiology Vol. 33; no. 7; pp. 4842 - 4854 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Berlin/Heidelberg
Springer Berlin Heidelberg
01.07.2023
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | Objective
To assess the detection of changes in knee cartilage and meniscus of amateur marathon runners before and after long-distance running using a 3D ultrashort echo time MRI sequence with magnetization transfer preparation (UTE-MT).
Methods
We recruited 23 amateur marathon runners (46 knees) in this prospective cohort study. MRI scans using UTE-MT and UTE-T2* sequences were performed pre-race, 2 days post-race, and 4 weeks post-race. UTE-MT ratio (UTE-MTR) and UTE-T2* were measured for knee cartilage (eight subregions) and meniscus (four subregions). The sequence reproducibility and inter-rater reliability were also investigated.
Results
Both the UTE-MTR and UTE-T2* measurements showed good reproducibility and inter-rater reliability. For most subregions of cartilage and meniscus, the UTE-MTR values decreased 2 days post-race and increased after 4 weeks of rest. Conversely, the UTE-T2* values increased 2 days post-race and decreased after 4 weeks. The UTE-MTR values in lateral tibial plateau, central medial femoral condyle, and medial tibial plateau showed a significant decrease at 2 days post-race compared to the other two time points (
p
< 0.05). By comparison, no significant UTE-T2* changes were found for any cartilage subregions. For meniscus, the UTE-MTR values in medial posterior horn and lateral posterior horn regions at 2 days post-race were significantly lower than those at pre-race and 4 weeks post-race (
p
< 0.05). By comparison, only the UTE-T2* values in medial posterior horn showed a significant difference.
Conclusions
UTE-MTR is a promising method for the detection of dynamic changes in knee cartilage and meniscus after long-distance running.
Key Points
• Long-distance running causes changes in the knee cartilage and meniscus.
• UTE-MT monitors dynamic changes of knee cartilage and meniscal non-invasively.
• UTE-MT is superior to UTE-T2* in monitoring dynamic changes in knee cartilage and meniscus. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1432-1084 0938-7994 1432-1084 |
DOI: | 10.1007/s00330-023-09462-x |