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Identification and Quantification of Myofascial Taut Bands With Magnetic Resonance Elastography - Source: Archives of Physical Medicine and Rehabilitation, December 2007

  [ 135 votes ]   [ 2 Comments ]
By Jeffrey R Basford, MD, PhD, et al. • www.ProHealth.com • December 5, 2007


(Note: Myofascial pain syndrome is pain permeating the muscles of the neck, back and shoulders and associated with trigger points – small lumps in a band of muscle that when pressed trigger a reproducible pattern of referred pain.)

Objective: To explore the feasibility of using a new magnetic resonance imaging (MRI) technique - magnetic resonance elastography (MRE) - to identify and quantitate the nature of myofascial taut bands.

Design: This investigation consisted of 3 steps. The first involved proof of concept on gel phantoms, the second involved numeric modeling, and the third involved a pilot trial on 2 subjects. Imaging was performed with a 1.5T MRI machine. Shear waves were produced with a custom-developed acoustically driven pneumatic transducer with gradient-echo image collection gated to the transducer’s motion. Shear wave propagation were imaged by MRE.

Setting: An MRI research laboratory.

Participants: Two women, one with a 3-year history of myofascial pain and the other serving as the control.

Interventions: Not applicable.

Main Outcome Measures: MRE images, finite element analysis calculations, and tissue and phantom stiffness determinations.

Results: Results of the phantom measurements, finite element calculations, and study patients were all consistent with the concept that taut bands are detectable and quantifiable with MRE imaging. The findings in the subjects suggest that the stiffness of the taut bands (9.0±0.9KPa) in patients with myofascial pain may be 50% greater than that of the surrounding muscle tissue.

Conclusions: Our findings suggest that MRE can quantitate asymmetries in muscle tone that could previously only be identified subjectively by examination.

Source: Archives of Physical Medicine and Rehabilitation. December 2007. vol 88, #12, pp 1658-1661. DOI:10.1016/j.apmr.2007.07.020, by Chen Q, Bensamoun S, Basford JR, Thompson JM, An K-N. Biomechanics Laboratory, Division of Orthopedic Research; Department of Physical Medicine and Rehabilitation, Mayo Clinic College of Medicine, Rochester, Minnesota. [E-mail: basford.jeffrey@mayo.edu





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Imaging myofascial pain
Posted by: kerryk
Dec 5, 2007
I would find the news more exciting if the researchers had chosen to image more than a couple of people. In fact, I expect the idea to fail since the so called "trigger points" can occur without the fabled "taut bands" and in places where there clearly are no muscles. The only explanation that ties up all the loose ends in my view is that the trigger points, or points of pain, which are very real, actually occur in the skin and related nerves. Errant muscle behaviour, which does occur, is only a reaction to a noxious process in tissues above it, and not the primary source of the disease. Other recent research findings of microcircular abnormalities in the skin and nerve oddities in the skin at the pain points are very persuasive to me and all this focus on the muscles I fear will lead to dead ends and discourage many researchers.
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imaging myofascial pain
Posted by: JONSsis
Dec 19, 2007
This subject is going to come to the forefront in fibro research and although 2 test subjects are certainly insufficient, it is a beginning. I have been receiving myofascial massage from a good therapist now for six months, and while I still have bands of muscle pain, my recovery time is much quicker. This is very definitely a "nerve" disorder, that affects the brain and I believe, the endocrine system as well. We all do what we find works, and to confine our research both as sufferers and medical providers is to limit that study. Anything that encourages positive thought and mutual aid is the biggest plus for all of us. Jonsis

 

 
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