| US 7,600,410 B2 | ||
| Optical techniques and system for 3-D characterization of ultrasound beams | ||
| John W. Sliwa, Jr., Los Altos, Calif. (US); Prasanna Hariharan, Rockville, Md. (US); Ronald A. Robinson, Germantown, Md. (US); Matthew R. Myers, Potomac, Md. (US); Subha Maruvada, North Bethesda, Md. (US); Rupak K. Banerjee, Mason, Ohio (US); and Gerald R. Harris, Rockville, Md. (US) | ||
| Assigned to St. Jude Medical, Atrial Fibrillation Division, Inc., St. Paul, Minn. (US); The United States of America as represented by the Secretary Department of Health and Human Services, Washington, D.C. (US); and The University of Cincinnati, Cincinnati, Ohio (US) | ||
| Filed on Dec. 21, 2006, as Appl. No. 11/642,989. | ||
| Claims priority of provisional application 60/752630, filed on Dec. 21, 2005. | ||
| Prior Publication US 2007/0204671 A1, Sep. 06, 2007 | ||
| Int. Cl. G01V 13/00 (2006.01) | ||
| U.S. Cl. 73—1.83 | 52 Claims |
| 1. A system for optically and non-invasively characterizing an acoustic beam, said system comprising:
a container having an immersant disposed therein, said immersant comprising an immersion medium seeded with a plurality of
seed particles;
at least one optical transmitter that illuminates at least some of said plurality of seed particles;
at least one optical receptor to track at least one optically-detectable parameter of at least some of said illuminated seed
particles, thereby generating at least one immersant parameter map; and
a processor that determines one or more characteristics of the acoustic beam from said at least one immersant parameter map
and one or more known properties of said immersant.
|