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Tissue Doppler optical coherence elastography for real time strain rate and strain mapping of soft tissue
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View: Figures


Image of FIG. 1.
FIG. 1.

(Color online) Schematic of the tDOCE system used in this study, where PC represents the polarization controller, C the collimator, ND the neutral density filter, DM the double pass mirror, L the lens, M the mirror, and G the grating.

Image of FIG. 2.
FIG. 2.

(Color online) From top to bottom, OCT structural image, velocity, instantaneous displacement, and strain rate maps of the bilayer phantom during loading (left column) at and unloading at (right column), respectively. The color bar at the bottom was used to code the images other than (a) and (e) with the range from for (b) and (f), from for (c) and (g), and from for (d) and (h), respectively. The arrows indicate the loading directions.

Image of FIG. 3.
FIG. 3.

(Color online) Integrated time varying (a) velocity , (b) strain rate , (c) displacement , and (d) strain (%) maps, respectively, of the tissue phantom subjected to 8 loading cycles and then followed by a rest period.

Image of FIG. 4.
FIG. 4.

(Color online) (a) Displacement and (b) strain profiles plotted against the time compared with the synchronized separate measurements of actual displacement [top curve in (a)] and force [bottom curve in (b)] applied to the phantom, respectively. The remainder of the curves from the bottom to the top represents the depth profiles at , 0.29, 0.51, and , respectively.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Tissue Doppler optical coherence elastography for real time strain rate and strain mapping of soft tissue