Spatial and temporal pattern of sporadic signal voids in incoherent motion sensitive examinations of musculature in the lower leg

IVIM sensitive MR images from single acquisitions recorded in resting calf musculature often display irregularly shaped areas with clear signal voids caused by unconscious focal mechanical contraction at rest. This work reports on systematic MR studies on the spatial and temporal pattern of such signal voids in calf musculature of 10 healthy. DWI or DTI measurements in the skeletal musculature of the lower leg are hampered by those sporadic activity-related signal voids, when mean signals of series of measurements are used for the calculations, and have to be considered for quantitative DWI or DTI of skeletal musculature.

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