Article Dans Une Revue Archives of Physical Medicine and Rehabilitation Année : 2007

Identification and Quantification of Myofascial Taut Bands With Magnetic Resonance Elastography

Résumé

Objective: To explore the feasibility of using a new magnetic resonance imaging(MRI) technique - magnetic resonance elastography (MRE) - to identify and quantitatethe nature of myofascial taut bands.Design: This investigation consisted of 3 steps. The first involved proof of concept ongel phantoms, the second involved numeric modeling, and the third involved a pilottrial on 2 subjects. Imaging was performed with a 1.5T MRI machine. Shear waveswere produced with a custom-developed acoustically driven pneumatic transducer withgradient-echo image collection gated to the transducer’s motion. Shear wavepropagation were imaged by MRE.Setting: An MRI research laboratory.Participants: Two women, one with a 3-year history of myofascial pain and the otherserving as the control.Interventions: Not applicable.Main Outcome Measures: MRE images, finite element analysis calculations, andtissue and phantom stiffness determinations.Results: Results of the phantom measurements, finite element calculations, and studypatients were all consistent with the concept that taut bands are detectable andquantifiable with MRE imaging. The findings in the subjects suggest that the stiffnessof the taut bands (9.0±0.9KPa) in patients with myofascial pain may be 50% greaterthan that of the surrounding muscle tissue.Conclusions: Our findings suggest that MRE can quantitate asymmetries in muscletone that could previously only be identified subjectively by examination.

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hal-03812635 , version 1 (16-10-2022)

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Qingshan Chen, Sabine F Bensamoun, Jeffrey Basford, Jeffrey Thompson, Kai-Nan An. Identification and Quantification of Myofascial Taut Bands With Magnetic Resonance Elastography. Archives of Physical Medicine and Rehabilitation, 2007, 88 (12), pp.1658-1661. ⟨10.1016/j.apmr.2007.07.020⟩. ⟨hal-03812635⟩
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