Erratum: “The Relationship of Three-Dimensional Human Skull Motion to Brain Tissue Deformation in Magnetic Resonance Elastography Studies” (ASME J. Biomech. Eng., 2017, 139(5), p. 051002; DOI: 10.1115/1.4036146) to Paper Number BIO-16-1363

J Biomech Eng 140(12), 127001 (Sep 25, 2018) (3 pages) Paper No: BIO-17-1588; doi: 10.1115/1.4040947 History: Received December 13, 2017; Revised December 26, 2017

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Grahic Jump Location
Fig. 8

caption (unchanged): Rigid-body motion of human brain tissue estimated from MRE measurements, compared with skull motion reconstructed from accelerometer data. (a) Trajectories at individual reconstruction points on the skull anterior (A), right (R), left (L), and posterior (P) are compared with analogous trajectories of neighboring brain tissue material points selected from the outer shell ROI. Red and blue dots in the elliptical trajectories indicate the reference time, t = 0. (b) The amplitude of the rigid-body motion coefficients for translation and rotation about the skull origin are compared between the skull and brain (n = 6). Error bars indicate standard deviation between subjects. (c) The component of displacement in the AP direction is plotted for the skull and brain posterior reconstruction points.

Grahic Jump Location
Fig. 9

caption (unchanged): Magnitudes (RMS) of (a) wave displacement, (b) curl, and (c) octahedral shear strain, in the human brain. Values are shown for each quadrant-shell ROI. For comparison with curl and strain (dimensionless measures of displacement/length), skull displacement magnitude is normalized by the major semi-axis of the skull (striped). Error bars in all three plots show the standard deviation among subjects (n = 6).




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