Patent ID: 9125615
Filing Date: 2015-09-08
Classification: A61B,G16H

Abstract:
1. A method for determining a material characteristic of a closed compartment of a body of a subject with an ultrasound system, the closed compartment having a tendon, the method comprising: with a transducer of said ultrasound system, non-invasively determining a first value corresponding to a speed of propagation of a shear wave induced, with an external input applied to a tissue of the subject, in proximity to the closed compartment; with a transducer of said ultrasound system, non-invasively determining a second value corresponding to a speed of propagation of said shear wave in tissue in a region associated with the closed compartment; with a processor of said system, calculating a current value of pressure in the closed compartment by applying a functional relationship between said pressure and said speed to the first and second values, said functional relationship having been measured on a testing device that contains a model of said closed compartment; and outputting data representing the current value of pressure in the closed compartment.