{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,8]],"date-time":"2026-02-08T02:16:45Z","timestamp":1770517005025,"version":"3.49.0"},"reference-count":33,"publisher":"Oxford University Press (OUP)","issue":"1104","license":[{"start":{"date-parts":[[2019,10,11]],"date-time":"2019-10-11T00:00:00Z","timestamp":1570752000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2019,12,1]]},"abstract":"<jats:sec>\n                  <jats:title>Objective:<\/jats:title>\n                  <jats:p>Early detection of tibialis posterior tendon changes and appropriate intervention is necessary to prevent disease progression to flat-foot deformity and foot\/ankle dysfunction, and the need for operative treatment. Currently, differentiating between early-stage tibialis posterior tendon deficiency patients who will benefit from conservative vs more aggressive treatment is challenging. The objective of this work was to establish a quantitative MRI T2* mapping method and subregion baseline values in the tibialis posterior tendon in asymptomatic ankles for future clinical application in detecting tendon degeneration.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods:<\/jats:title>\n                  <jats:p>26 asymptomatic volunteers underwent T2* mapping. The tendon was divided axially into seven subregions. Summary statistics for T2* within each subregion were calculated and compared using Tukey post-hoc pairwise comparisons.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results:<\/jats:title>\n                  <jats:p>Results are reported for 24 subjects. The mean tibialis posterior tendon T2* was 7 \u00b1 1 ms. Subregion values ranged from 6 \u00b1 1 to 9 \u00b1 2 ms with significant between-region differences in T2*. Inter- and intrarater absolute agreement intraclass correlation coefficient (ICC) values were all \"excellent\" (0.75 &amp;lt; ICC=1.00) except for regions 5 through 7, which had \"fair to good\" interrater and\/or and intrarater ICC values (0.4 &amp;lt; ICC=0.75).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusion:<\/jats:title>\n                  <jats:p>A tibialis posterior tendon T2* mapping protocol, subregion division method, and baseline T2* values for clinically relevant regions were established. Significant differences in T2* were observed along the tendon length.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Advances in knowledge:<\/jats:title>\n                  <jats:p>This work demonstrates that regional variation exists and should be considered for future T2*-based research on posterior tibias tendon degeneration and when using T2* mapping to evaluate for potential tibialis posterior tendon degeneration.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1259\/bjr.20190221","type":"journal-article","created":{"date-parts":[[2019,10,9]],"date-time":"2019-10-09T14:11:46Z","timestamp":1570630306000},"source":"Crossref","is-referenced-by-count":3,"title":["T2* mapping and subregion analysis of the tibialis posterior tendon using 3 Tesla magnetic resonance imaging"],"prefix":"10.1093","volume":"92","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3730-4740","authenticated-orcid":false,"given":"Carly 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