| US 7,471,975 B2 | ||
| Optical tensor imaging | ||
| Randall L. Barbour, Glen Head, N.Y. (US) | ||
| Assigned to The Research Foundation of State University of New York, Albany, N.Y. (US) | ||
| Filed on Sep. 22, 2005, as Appl. No. 11/232,847. | ||
| Claims priority of provisional application 60/611998, filed on Sep. 22, 2004. | ||
| Prior Publication US 2006/0064001 A1, Mar. 23, 2006 | ||
| Int. Cl. A61B 6/00 (2006.01) | ||
| U.S. Cl. 600—473 [600/476; 600/407; 600/310] | 14 Claims |
| 1. A method of measuring local and propagating pulsatile behavior of a vasculature system, comprising:
capturing a time-series of optical images;
analyzing the images to produce a time-series of vector field maps based on measurements of local displacement of hemoglobin
contrast;
obtaining a resulting time-dependent tensor field image for each time-interval being considered, from said time-series of
vector field maps; and
analyzing the resulting time-dependent tensor field image to obtain metrics of local and propagating oscillatory behavior.
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