ISB 2017 Tutorials: Imaging

Posted on September 26, 2016

What can modern imaging methods do?

We are pleased to announce that ISB tutorials in Brisbane 2017 will be given by Professor Peter Hunter, Professor Gregory Sawicki, Professor Lynne Bilston and by Professor Fran├žois Hug, Dr. Dominic Farris and Dr. Bart Bolsterlee. Two of the tutorials focus on state-of-the art imaging methods in biomechanics basic and applied research, and these are introduced in this issue.

Ultrasound techniques for muscle-tendon imaging

Fran├žois Hug, Dominic Farris and Bart Bolsterlee

Beyond the coordination between multiple effectors at different levels (e.g. between individual muscles, between joints), successful movements involve interactions between muscles and connective tissues (e.g. aponeurosis, tendons). In-vivo muscle biomechanical properties have been classically inferred from global methods (e.g. inverse dynamics, joint torque) that cannot isolate the behaviour of individual muscles or structures.

This tutorial will present an overview of the ultrasound methods that enable muscle and tendinous tissues to be imaged in real time. This tutorial will first introduce B-mode imaging and advanced methods to assess displacements within the muscle-tendon unit (semi-automated tracking, 3D freehand ultrasound). Second, the issue of probe positioning for 2-D measurements will be discussed through examples of the human medial gastrocnemius muscle. Future directions should combine displacements assessed using B-mode ultrasound with actual force applied on tissues. The third part of this tutorial will therefore present an ultrasound shear wave elastography technique that showed potential in estimation of both active and passive muscle force. Recent development of this elastography technique for tendon research will be presented. This tutorial will include both lectures and demonstrations.

MR imaging in biomechanics

What existing and emerging MRI methods are useful for biomechanists, and how can you apply them to musculoskeletal, respiratory and neurological disorders?

Lynne Bilston

Magnetic resonance imaging (MRI) is commonly used to make structural and functional measurements in a wide variety of clinical and experimental contexts. However, it is also increasingly being used by biomechanists to make biomechanical measurements, including quantitative measurements of fluid flows, measurements of tissue mechanical properties, and joint and muscle kinematics. In this tutorial, you will learn about some of the current and emerging MRI techniques that can be used for biomechanics applications, their strengths and limitations, and examples of how they can be used for both research and clinical applications in a wide range of clinical disorders across the cardiovascular, neurological, musculoskeletal, and respiratory domains. We will also briefly discuss the use of MRI for building and validating computational models.

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