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Ultrafast imaging of in vivo muscle contraction using ultrasound

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5 Author(s)
Deffieux, T. ; Laboratoire Ondes et Acoustique, ESPCI, Université Paris VII, CNRS UMR 7587, 10 Rue Vauquelin 75005 Paris, France ; Gennisson, J.-L. ; Tanter, M. ; Fink, M.
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In this letter, an innovative way of imaging transient and local shear vibrations of an in vivo contracting muscle is proposed. The principle is to use an ultrafast ultrasound scanner (up to 5000 frames s-1) able to follow with a submillimeter resolution the motion of the muscle tissue in a two dimensional plane. This ultrafast echographic imaging technique leads to both local and transient in vivo studies of the contraction of a muscle as reported by these first experiments done on the biceps brachii.

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Applied Physics Letters  (Volume:89 ,  Issue: 18 )