MRI of wrist ligament trauma was similar at 7 T and 3 T with arthroscopy as a reference standard

作者：Simon Götestrand, Magnus Flondell, Björn Lundin, Elena Aksyuk, Rami Abu Shalhoub, Paweł Szaro, Erik Hedström, Anders Björkman, Mats Geijer · 发表于：European Radiology · 年份：2025 · DOI：10.1007/s00330-025-11656-4 · 被引用次数：3 · 研究领域：Orthopedic Surgery and Rehabilitation、Foot and Ankle Surgery、Knee injuries and reconstruction techniques

OBJECTIVES: The aim was to compare the diagnostic accuracy of magnetic resonance imaging (MRI) at 7 Tesla (T) and 3 T in patients with clinically suspected injury of the triangular fibrocartilage complex (TFCC) or the scapholunate ligament (SLL) using wrist arthroscopy as a reference standard. METHODS: Twenty-four patients scheduled for wrist arthroscopy due to suspected TFCC or SLL injury were examined with 7-T and 3-T MRI before arthroscopy. Four musculoskeletal radiologists independently evaluated the MR examinations in randomized order, and the findings were compared to those at wrist arthroscopy. RESULTS: Sensitivity, specificity, and accuracy for TFCC injuries were 0.85, 0.68, and 0.82 for 7 T and 0.75, 0.73, and 0.77 for 3 T, respectively. For SLL injuries, the corresponding values were 0.70, 0.65, and 0.74 for 7 T and 0.69, 0.55, and 0.70 for 3 T, respectively. For both TFCC and SLL injuries, no statistically significant difference between 7 T and 3 T was found, and the confidence intervals for accuracy overlapped (0.67-0.94 vs 0.63-0.88 for TFCC injuries and 0.59-0.89 vs 0.52-0.86 for SLL injuries). In 14 of 24 patients (58%), MRI contributed findings of additional types of injuries, e.g., tendon injuries and ganglia, vital for a complete diagnosis. CONCLUSIONS: The diagnostic accuracy of MRI at 7 T was similar to 3 T for detecting injury to the TFCC and the SLL. A majority of injuries were correctly diagnosed by MRI, but some injuries found using arthroscopy were mi...