> Detailanzeige

Grosse, Ulrich; Springer, Fabian; Hein, Tobias; Grözinger, Gerd; Schabel, Christoph; Martirosian, Petros; Schick, Fritz; Syha, Roland

Influence of physical activity on T1 and T2* relaxation times of healthy achilles tendons at 3T

Literatur-
verwaltung

Zur
Merkliste

Lösche von
Merkliste

Per Whatsapp teilen

Schließen

Merkliste



Sie können Bookmarks mittels Listen verwalten, loggen Sie sich dafür bitte in Ihr SLUB Benutzerkonto ein.
  • Medientyp: E-Artikel
  • Titel: Influence of physical activity on T1 and T2* relaxation times of healthy achilles tendons at 3T
  • Beteiligte: Grosse, Ulrich; Springer, Fabian; Hein, Tobias; Grözinger, Gerd; Schabel, Christoph; Martirosian, Petros; Schick, Fritz; Syha, Roland
  • Erschienen: Wiley, 2015
  • Erschienen in: Journal of Magnetic Resonance Imaging
  • Sprache: Englisch
  • DOI: 10.1002/jmri.24525
  • ISSN: 1522-2586; 1053-1807
  • Schlagwörter: Radiology, Nuclear Medicine and imaging
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: <jats:sec><jats:title>Purpose</jats:title><jats:p>To evaluate longitudinal (T1) and transverse (T2*) relaxation times at different Achilles tendon locations (insertion, mid‐portion, and musculotendinous area) in a cohort of subjects with variable tendon straining activity, but without any signs of tendinopathy.</jats:p></jats:sec><jats:sec><jats:title>Materials and Methods</jats:title><jats:p>T1 and T2* relaxation times of the Achilles tendon were measured using an ultrashort echo time (UTE) imaging sequence with flip angle and echo time variation on a 3T whole‐body clinical magnetic resonance (MR) scanner. Twenty‐four tendons of 12 healthy volunteers and 18 tendons of nine healthy recreational long‐distance runners (average weekly running distance of 47.4 ± 5.3 km) were enrolled.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>Mean T1 values of the whole tendon showed no marked group differences, whereas T2* relaxation times of runners were significantly longer (mean percentage increase 15.7 ± 4.9%; <jats:italic>P</jats:italic> = 0.0181) compared to controls. Regarding group differences for the investigated insertional, mid‐portion, and musculotendinous area of the Achilles tendon, only the mid‐portion of the Achilles tendon in the running group presented significantly longer T2* values (mean percentage increase 29.1 ± 23.0%; <jats:italic>P</jats:italic> = 0.0420) in comparison to the control group.</jats:p></jats:sec><jats:sec><jats:title>Conclusion</jats:title><jats:p>Prolonged T2* values especially in the mid‐portion of the Achilles tendon of runners are likely to reflect an adaptation of the tendon microstructure to repetitive tendon straining activity. <jats:bold>J. Magn. Reson. Imaging 2015;41:193–201.</jats:bold> © <jats:bold>2013 Wiley Periodicals, Inc</jats:bold>.</jats:p></jats:sec>