Ultra-high field magnetic resonance imaging of the quadriceps tendon enthesis in healthy subjects.
Purpose: Although enthesitis is a hallmark of several rheumatologic conditions, current imaging methods are still unable to characterize entheses changes because of the corresponding short transverse relaxation times (T2). A growing number of MR studies have used Ultra-High Field (UHF) MRI in order...
| Publicado en: | Surgical & Radiologic Anatomy Vol. 45; no. 8; pp. 1049 - 1055 |
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| Autores principales: | , , , , , , , , , , , , |
| Formato: | Journal Article |
| Publicado: |
Springer Nature
Aug2023
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=165467410&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 165467410 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09301038 O1L jtl: Surgical & Radiologic Anatomy issn: 09301038 maglogo: N pubinfo: dt: Aug2023 vid: 45 iid: 8 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 165467410 164106757 10.1007/s00276-023-03175-y 165467410 ppf: 1049 ppct: 6 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Ultra-high field magnetic resonance imaging of the quadriceps tendon enthesis in healthy subjects. aug: au: Guenoun, Daphne Wirth, Theo Roche, Damien Michel, Constance P. Daudé, Pierre Ogier, Augustin C. Chagnaud, Christophe Mattei, Jean Pierre Pini, Lauriane Guye, Maxime Ollivier, Matthieu Bendahan, David Guis, Sandrine affil: Institute for Locomotion, Department of Radiology, APHM, Sainte-Marguerite Hospital, 270 Bd Sainte Marguerite, 13009, Marseille, France sug: ab: Purpose: Although enthesitis is a hallmark of several rheumatologic conditions, current imaging methods are still unable to characterize entheses changes because of the corresponding short transverse relaxation times (T2). A growing number of MR studies have used Ultra-High Field (UHF) MRI in order to assess low-T2 tissues e.g., tendon but never in humans. The purpose of the present study was to assess in vivo the enthesis of the quadriceps tendon in healthy subjects using UHF MRI. Methods: Eleven healthy subjects volunteered in an osteoarthritis imaging study. The inclusion criteria were: no knee trauma, Lequesne index = 0, less than 3 h of sport activities per week, and Kellgren and Lawrence grade = 0. 3D MR images were acquired at 7 T using GRE sequences and a T2* mapping. Regions of interest i.e., trabecular bone, subchondral bone, enthesis, and tendon body were identified, and T2* values were quantified and compared. Results: Quadriceps tendon enthesis was visible as a hyper-intense signal. The largest and the lowest T2* values were quantified in the subchondral bone region and the tendon body respectively. T2* value within subchondral bone was significantly higher than T2* value within the enthesis. T2* in subchondral bone region was significantly higher than the whole tendon body T2*. Conclusion: A T2* gradient was observed along the axis from the enthesis toward the tendon body. It illustrates different water biophysical properties. These results provide normative values which could be used in the field of inflammatory rheumatologic diseases and mechanical disorders affecting the tendon. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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