Abstract #1274

Compressed-Sensing 4D Flow MRI of the Skeletal Muscle during Nerve vs Muscle Electrical Stimulation

Francesco Santini^1,2, Nicolas Place³, Anna Hirschmann⁴, Ning Jin⁵, Oliver Bieri^1,2, and Xeni Deligianni^1,2

¹Department of Radiology, Division of Radiological Physics, University Hospital Basel, Basel, Switzerland, ²Department of Biomedical Engineering, University of Basel, Basel, Switzerland, ³Institute of Sport Sciences, University of Lausanne, Lausanne, Switzerland, ⁴Department of Radiology, University Hospital Basel, Basel, Switzerland, ⁵Siemens Medical Solutions, Cleveland, OH, United States

The purpose of this study was to use dynamic 4D phase contrast MR imaging to compare the stimulation patterns of neuromuscular electrical stimulation of the calf muscles when delivered through the muscle belly or through the nerve trunk. Experiments were performed on healthy volunteers and strain maps were obtained for each stimulation modality. A more homogeneous activation of the muscle group was obtained for nerve stimulation, with overall lower strain values with respect to muscle stimulation.

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